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字串

簡介

Laravel 包含各種用於操作字串值的函式。許多這些函式被框架本身使用;但是,如果您覺得方便,您可以在自己的應用程式中自由使用它們。

可用方法

字串

__ class_basename e preg_replace_array Str::after Str::afterLast Str::apa Str::ascii Str::before Str::beforeLast Str::between Str::betweenFirst Str::camel Str::charAt Str::chopStart Str::chopEnd Str::contains Str::containsAll Str::doesntContain Str::deduplicate Str::endsWith Str::excerpt Str::finish Str::headline Str::inlineMarkdown Str::is Str::isAscii Str::isJson Str::isUlid Str::isUrl Str::isUuid Str::kebab Str::lcfirst Str::length Str::limit Str::lower Str::markdown Str::mask Str::orderedUuid Str::padBoth Str::padLeft Str::padRight Str::password Str::plural Str::pluralStudly Str::position Str::random Str::remove Str::repeat Str::replace Str::replaceArray Str::replaceFirst Str::replaceLast Str::replaceMatches Str::replaceStart Str::replaceEnd Str::reverse Str::singular Str::slug Str::snake Str::squish Str::start Str::startsWith Str::studly Str::substr Str::substrCount Str::substrReplace Str::swap Str::take Str::title Str::toBase64 Str::transliterate Str::trim Str::ltrim Str::rtrim Str::ucfirst Str::ucsplit Str::upper Str::ulid Str::unwrap Str::uuid Str::uuid7 Str::wordCount Str::wordWrap Str::words Str::wrap str trans trans_choice

流暢字串

after afterLast apa append ascii basename before beforeLast between betweenFirst camel charAt classBasename chopStart chopEnd contains containsAll deduplicate dirname endsWith exactly excerpt explode finish headline inlineMarkdown is isAscii isEmpty isNotEmpty isJson isUlid isUrl isUuid kebab lcfirst length limit lower markdown mask match matchAll isMatch newLine padBoth padLeft padRight pipe plural position prepend remove repeat replace replaceArray replaceFirst replaceLast replaceMatches replaceStart replaceEnd scan singular slug snake split squish start startsWith stripTags studly substr substrReplace swap take tap test title toBase64 toHtmlString transliterate trim ltrim rtrim ucfirst ucsplit unwrap upper when whenContains whenContainsAll whenEmpty whenNotEmpty whenStartsWith whenEndsWith whenExactly whenNotExactly whenIs whenIsAscii whenIsUlid whenIsUuid whenTest wordCount words wrap

字串

__()

__ 函數使用您的語言檔案來翻譯給定的翻譯字串或翻譯鍵:

echo __('歡迎來到我們的應用程式');

echo __('messages.welcome');

如果指定的翻譯字串或鍵不存在,__ 函數將返回給定的值。因此,使用上面的例子,如果該翻譯鍵不存在,__ 函數將返回 messages.welcome

class_basename()

class_basename 函數返回給定類別的類別名稱,並刪除類別的命名空間:

$class = class_basename('Foo\Bar\Baz');

// Baz

e()

e 函數使用 PHP 的 htmlspecialchars 函數,預設將 double_encode 選項設置為 true

echo e('foo');

// <html>foo</html>

preg_replace_array()

preg_replace_array 函數使用陣列依序替換字串中的給定模式:

$string = 'The event will take place between :start and :end';

$replaced = preg_replace_array('/:[a-z_]+/', ['8:30', '9:00'], $string);

// The event will take place between 8:30 and 9:00

Str::after()

Str::after 方法返回字串中給定值之後的所有內容。如果該值不存在於字串中,將返回整個字串:

use Illuminate\Support\Str;

$slice = Str::after('This is my name', 'This is');

// ' my name'

Str::afterLast()

Str::afterLast 方法返回字串中最後一次出現的給定值之後的所有內容。如果該值不存在於字串中,將返回整個字串:

use Illuminate\Support\Str;

$slice = Str::afterLast('App\Http\Controllers\Controller', '\\');

// 'Controller'

Str::apa()

Str::apa 方法根據APA 指南將給定的字串轉換為標題大小寫:

use Illuminate\Support\Str;

$title = Str::apa('Creating A Project');

// 'Creating a Project'

Str::ascii()

Str::ascii 方法將嘗試將字串轉換為 ASCII 值:

use Illuminate\Support\Str;

$slice = Str::ascii('û');

// 'u'

Str::before()

Str::before 方法返回字串中指定值之前的所有內容:

use Illuminate\Support\Str;

$slice = Str::before('This is my name', 'my name');

// 'This is '

Str::beforeLast()

Str::beforeLast 方法返回字串中指定值最後一次出現之前的所有內容:

use Illuminate\Support\Str;

$slice = Str::beforeLast('This is my name', 'is');

// 'This '

Str::between()

Str::between 方法返回字串中兩個值之間的部分:

use Illuminate\Support\Str;

$slice = Str::between('This is my name', 'This', 'name');

// ' is my '

Str::betweenFirst()

Str::betweenFirst 方法返回字串中兩個值之間可能最小的部分:

use Illuminate\Support\Str;

$slice = Str::betweenFirst('[a] bc [d]', '[', ']');

// 'a'

Str::camel()

Str::camel 方法將給定的字串轉換為 camelCase

use Illuminate\Support\Str;

$converted = Str::camel('foo_bar');

// 'fooBar'

Str::charAt()

Str::charAt 方法返回指定索引處的字符。如果索引超出範圍,則返回 false

use Illuminate\Support\Str;

$character = Str::charAt('This is my name.', 6);

// 's'

Str::chopStart()

Str::chopStart 方法僅在值出現在字串開頭時才刪除給定值的第一次出現:

use Illuminate\Support\Str;

$url = Str::chopStart('https://laravel.com', 'https://');

// 'laravel.com'

您也可以將陣列作為第二個引數傳遞。如果字串以陣列中的任何值開頭,則該值將從字串中刪除:

use Illuminate\Support\Str;

$url = Str::chopStart('http://laravel.com', ['https://', 'http://']);

// 'laravel.com'

Str::chopEnd()

Str::chopEnd 方法僅在值出現在字串結尾時才刪除給定值的最後一次出現:

use Illuminate\Support\Str;

$url = Str::chopEnd('app/Models/Photograph.php', '.php');

// 'app/Models/Photograph'

您也可以將陣列作為第二個引數傳遞。如果字串以陣列中的任何值結尾,則該值將從字串中刪除:

use Illuminate\Support\Str;

$url = Str::chopEnd('laravel.com/index.php', ['/index.html', '/index.php']);

// 'laravel.com'

Str::contains()

Str::contains 方法確定給定的字串是否包含給定的值。默認情況下,此方法區分大小寫:

use Illuminate\Support\Str;

$contains = Str::contains('This is my name', 'my');

// true

您也可以傳遞值陣列以確定給定的字串是否包含陣列中的任何值:

use Illuminate\Support\Str;

$contains = Str::contains('This is my name', ['my', 'foo']);

// true

您可以通過將 ignoreCase 引數設置為 true 來禁用區分大小寫:

use Illuminate\Support\Str;

$contains = Str::contains('This is my name', 'MY', ignoreCase: true);

// true

Str::containsAll()

Str::containsAll 方法確定給定的字串是否包含給定陣列中的所有值:

use Illuminate\Support\Str;

$containsAll = Str::containsAll('This is my name', ['my', 'name']);

// true

您可以通過將 ignoreCase 引數設置為 true 來禁用區分大小寫:

use Illuminate\Support\Str;

$containsAll = Str::containsAll('This is my name', ['MY', 'NAME'], ignoreCase: true);

// true

Str::doesntContain()

Str::doesntContain 方法確定給定的字串是否不包含給定的值。默認情況下,此方法區分大小寫:

use Illuminate\Support\Str;

$doesntContain = Str::doesntContain('This is name', 'my');

// true

您也可以傳遞值陣列以確定給定的字串是否不包含陣列中的任何值:

use Illuminate\Support\Str;

$doesntContain = Str::doesntContain('This is name', ['my', 'foo']);

// true

您可以通過將 ignoreCase 引數設置為 true 來禁用區分大小寫:

use Illuminate\Support\Str;

$doesntContain = Str::doesntContain('This is name', 'MY', ignoreCase: true);

// true

Str::deduplicate()

Str::deduplicate 方法將給定字串中連續出現的字符替換為該字符的單個實例。默認情況下,該方法會去除重複的空格:

use Illuminate\Support\Str;

$result = Str::deduplicate('The   Laravel   Framework');

// The Laravel Framework

您可以通過將其作為該方法的第二個引數傳遞來指定要去除重複的不同字符:

use Illuminate\Support\Str;

$result = Str::deduplicate('The---Laravel---Framework', '-');

// The-Laravel-Framework

Str::endsWith()

Str::endsWith 方法確定給定的字串是否以給定的值結尾:

use Illuminate\Support\Str;

$result = Str::endsWith('This is my name', 'name');

// true

您也可以傳遞一個值陣列來確定給定的字串是否以陣列中的任何值結尾:

use Illuminate\Support\Str;

$result = Str::endsWith('This is my name', ['name', 'foo']);

// true

$result = Str::endsWith('This is my name', ['this', 'foo']);

// false

Str::excerpt()

Str::excerpt 方法從給定的字串中提取與該字串中的短語的第一個實例匹配的摘要:

use Illuminate\Support\Str;

$excerpt = Str::excerpt('This is my name', 'my', [
    'radius' => 3
]);

// '...is my na...'

radius 選項的預設值為 100,允許您定義應出現在截斷字串的每一側的字元數。

此外,您可以使用 omission 選項來定義應在截斷字串之前和之後添加的字串:

use Illuminate\Support\Str;

$excerpt = Str::excerpt('This is my name', 'name', [
    'radius' => 3,
    'omission' => '(...) '
]);

// '(...) my name'

Str::finish()

Str::finish 方法如果字串尚未以該值結尾,則將給定值的單個實例添加到字串中:

use Illuminate\Support\Str;

$adjusted = Str::finish('this/string', '/');

// this/string/

$adjusted = Str::finish('this/string/', '/');

// this/string/

Str::headline()

Str::headline 方法將由大小寫、連字符或底線分隔的字串轉換為以空格分隔的字串,每個單詞的第一個字母大寫:

use Illuminate\Support\Str;

$headline = Str::headline('steve_jobs');

// Steve Jobs

$headline = Str::headline('EmailNotificationSent');

// Email Notification Sent

Str::inlineMarkdown()

Str::inlineMarkdown 方法使用 CommonMark 將 GitHub 風格的 Markdown 轉換為內嵌 HTML。但是,與 markdown 方法不同,它不會將所有生成的 HTML 包裹在區塊級元素中:

use Illuminate\Support\Str;

$html = Str::inlineMarkdown('**Laravel**');

// <strong>Laravel</strong>

Markdown 安全性

預設情況下,Markdown 支持原始 HTML,當與原始用戶輸入一起使用時,將暴露跨站腳本(XSS)漏洞。根據 CommonMark 安全性文件,您可以使用 html_input 選項來轉義或刪除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的連結。如果需要允許一些原始 HTML,您應該通過 HTML 淨化器處理編譯後的 Markdown:

use Illuminate\Support\Str;

Str::inlineMarkdown('Inject: <script>alert("Hello XSS!");</script>', [
    'html_input' =&gt; 'strip',
    'allow_unsafe_links' =&gt; false,
]);

// Inject: alert("Hello XSS!");

Str::is()

Str::is 方法確定給定的字串是否與給定的模式匹配。星號可以用作萬用值:

use Illuminate\Support\Str;

$matches = Str::is('foo*', 'foobar');

// true

$matches = Str::is('baz*', 'foobar');

// false

您可以通過將 ignoreCase 引數設置為 true 來禁用大小寫敏感性:

use Illuminate\Support\Str;

$matches = Str::is('*.jpg', 'photo.JPG', ignoreCase: true);

// true

Str::isAscii()

Str::isAscii 方法確定給定的字串是否為 7 位 ASCII:

use Illuminate\Support\Str;

$isAscii = Str::isAscii('Taylor');

// true

$isAscii = Str::isAscii('ü');

// false

Str::isJson()

Str::isJson 方法確定給定的字串是否為有效的 JSON:

use Illuminate\Support\Str;

$result = Str::isJson('[1,2,3]');

// true

$result = Str::isJson('{"first": "John", "last": "Doe"}');

// true

$result = Str::isJson('{first: "John", last: "Doe"}');

// false

Str::isUrl()

Str::isUrl 方法確定給定的字串是否為有效的 URL:

use Illuminate\Support\Str;

$isUrl = Str::isUrl('http://example.com');

// true

$isUrl = Str::isUrl('laravel');

// false

isUrl 方法將考慮各種協議作為有效。但是,您可以通過將它們提供給 isUrl 方法來指定應該被視為有效的協議:

$isUrl = Str::isUrl('http://example.com', ['http', 'https']);

Str::isUlid()

Str::isUlid 方法確定給定的字串是否為有效的 ULID:

use Illuminate\Support\Str;

$isUlid = Str::isUlid('01gd6r360bp37zj17nxb55yv40');

// true

$isUlid = Str::isUlid('laravel');

// false

Str::isUuid()

Str::isUuid 方法確定給定的字串是否為有效的 UUID:

use Illuminate\Support\Str;

$isUuid = Str::isUuid('a0a2a2d2-0b87-4a18-83f2-2529882be2de');

// true

$isUuid = Str::isUuid('laravel');

// false

Str::kebab()

Str::kebab 方法將給定的字串轉換為 kebab-case

use Illuminate\Support\Str;

$converted = Str::kebab('fooBar');

// foo-bar

Str::lcfirst()

Str::lcfirst 方法返回首字母小寫的給定字串:

use Illuminate\Support\Str;

$string = Str::lcfirst('Foo Bar');

// foo Bar

Str::length()

Str::length 方法返回給定字串的長度:

use Illuminate\Support\Str;

$length = Str::length('Laravel');

// 7

Str::limit()

Str::limit 方法將給定的字串截斷為指定的長度:

use Illuminate\Support\Str;

$truncated = Str::limit('The quick brown fox jumps over the lazy dog', 20);

// The quick brown fox...

您可以傳遞第三個引數給該方法,以更改附加到截斷字串末尾的字串:

$truncated = Str::limit('The quick brown fox jumps over the lazy dog', 20, ' (...)');

// The quick brown fox (...)

如果您希望在截斷字串時保留完整的單詞,您可以使用 preserveWords 引數。當此引數為 true 時,字串將被截斷到最接近的完整單詞邊界:

$truncated = Str::limit('The quick brown fox', 12, preserveWords: true);

// The quick...

Str::lower()

Str::lower 方法將給定的字串轉換為小寫:

use Illuminate\Support\Str;

$converted = Str::lower('LARAVEL');

// laravel

Str::markdown()

Str::markdown 方法使用 CommonMark 將 GitHub 風格的 Markdown 轉換為 HTML:

use Illuminate\Support\Str;

$html = Str::markdown('# Laravel');

// <h1>Laravel</h1>

$html = Str::markdown('# Taylor <b>Otwell</b>', [
    'html_input' =&gt; 'strip',
]);

// <h1>Taylor Otwell</h1>

Markdown 安全性

預設情況下,Markdown 支持原始 HTML,當與原始用戶輸入一起使用時,將暴露跨站腳本(XSS)漏洞。根據 CommonMark 安全性文件,您可以使用 html_input 選項來轉義或刪除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的鏈接。如果您需要允許一些原始 HTML,您應該通過 HTML 淨化器處理編譯後的 Markdown:

use Illuminate\Support\Str;

Str::markdown('Inject: <script>alert("Hello XSS!");</script>', [
    'html_input' =&gt; 'strip',
    'allow_unsafe_links' =&gt; false,
]);

// <p>Inject: alert("Hello XSS!");</p>

Str::mask()

Str::mask 方法使用重複的字符遮罩字串的一部分,可用於混淆字符串的部分,例如電子郵件地址和電話號碼:

use Illuminate\Support\Str;

$string = Str::mask('taylor@example.com', '*', 3);

// tay***************

如果需要,您可以將負數作為 mask 方法的第三個參數,該參數將指示該方法從字符串末尾的給定距離開始進行遮罩:

$string = Str::mask('taylor@example.com', '*', -15, 3);

// tay***@example.com

Str::orderedUuid()

Str::orderedUuid 方法生成一個“時間戳記優先”的 UUID,可以有效地存儲在索引的資料庫列中。使用此方法生成的每個 UUID 將在之前使用該方法生成的 UUID 之後排序:

use Illuminate\Support\Str;

return (string) Str::orderedUuid();

Str::padBoth()

Str::padBoth 方法封裝了 PHP 的 str_pad 函數,使用另一個字符串在字符串的兩側進行填充,直到最終字符串達到所需的長度:

use Illuminate\Support\Str;

$padded = Str::padBoth('James', 10, '_');

// '__James___'

$padded = Str::padBoth('James', 10);

// '  James   '

Str::padLeft()

Str::padLeft 方法封裝了 PHP 的 str_pad 函數,使用另一個字符串在字符串的左側進行填充,直到最終字符串達到所需的長度:

use Illuminate\Support\Str;

$padded = Str::padLeft('James', 10, '-=');

// '-=-=-James'

$padded = Str::padLeft('James', 10);

// '     James'

Str::padRight()

Str::padRight 方法封裝了 PHP 的 str_pad 函數,使用另一個字符串在字符串的右側進行填充,直到最終字符串達到所需的長度:

use Illuminate\Support\Str;

$padded = Str::padRight('James', 10, '-');

// 'James-----'

$padded = Str::padRight('James', 10);

// 'James     '

Str::password()

Str::password 方法可用於生成指定長度的安全隨機密碼。密碼將由字母、數字、符號和空格的組合組成。默認情況下,密碼長度為 32 個字符:

use Illuminate\Support\Str;

$password = Str::password();

// 'EbJo2vE-AS:U,$%_gkrV4n,q~1xy/-_4'

$password = Str::password(12);

// 'qwuar&gt;#V|i]N'

Str::plural()

Str::plural 方法將單詞字符串轉換為其複數形式。此函數支持 Laravel 複數形式支持的任何語言

use Illuminate\Support\Str;

$plural = Str::plural('car');

// cars

$plural = Str::plural('child');

// children

您可以將整數作為函數的第二個參數,以檢索字符串的單數形式或複數形式:

use Illuminate\Support\Str;

$plural = Str::plural('child', 2);

// children

$singular = Str::plural('child', 1);

// child

Str::pluralStudly()

Str::pluralStudly 方法將以 studly caps 格式排列的單詞字符串轉換為其複數形式。此函數支持 Laravel 複數形式支持的任何語言

use Illuminate\Support\Str;

$plural = Str::pluralStudly('VerifiedHuman');

// VerifiedHumans

$plural = Str::pluralStudly('UserFeedback');

// UserFeedback

您可以將整數作為函數的第二個參數,以檢索字符串的單數形式或複數形式:

use Illuminate\Support\Str;

$plural = Str::pluralStudly('VerifiedHuman', 2);

// VerifiedHumans

$singular = Str::pluralStudly('VerifiedHuman', 1);

// VerifiedHuman

Str::position()

Str::position 方法返回字符串中子字符串的第一次出現的位置。如果給定字符串中不存在子字符串,則返回 false

use Illuminate\Support\Str;

$position = Str::position('Hello, World!', 'Hello');

// 0

$position = Str::position('Hello, World!', 'W');

// 7

Str::random()

Str::random 方法生成指定長度的隨機字符串。此函數使用 PHP 的 random_bytes 函數:

use Illuminate\Support\Str;

$random = Str::random(40);

在測試期間,將 Str::random 方法返回的值“偽造”可能很有用。為此,您可以使用 createRandomStringsUsing 方法:

Str::createRandomStringsUsing(function () {
    return 'fake-random-string';
});

要指示 random 方法恢復正常生成隨機字符串,您可以調用 createRandomStringsNormally 方法:

Str::createRandomStringsNormally();

Str::remove()

Str::remove 方法從字符串中刪除給定的值或值陣列:

use Illuminate\Support\Str;

$string = 'Peter Piper picked a peck of pickled peppers.';

$removed = Str::remove('e', $string);

// Ptr Pipr pickd a pck of pickld ppprs.

您也可以將 false 作為 remove 方法的第三個參數傳遞,以在刪除字符串時忽略大小寫。

Str::repeat()

Str::repeat 方法重複給定的字串:

use Illuminate\Support\Str;

$string = 'a';

$repeat = Str::repeat($string, 5);

// aaaaa

Str::replace()

Str::replace 方法在字串中替換給定的字串:

use Illuminate\Support\Str;

$string = 'Laravel 11.x';

$replaced = Str::replace('11.x', '12.x', $string);

// Laravel 12.x

replace 方法還接受一個 caseSensitive 引數。默認情況下,replace 方法區分大小寫:

Str::replace('Framework', 'Laravel', caseSensitive: false);

Str::replaceArray()

Str::replaceArray 方法使用陣列依序替換字串中的給定值:

use Illuminate\Support\Str;

$string = 'The event will take place between ? and ?';

$replaced = Str::replaceArray('?', ['8:30', '9:00'], $string);

// The event will take place between 8:30 and 9:00

Str::replaceFirst()

Str::replaceFirst 方法替換字串中第一次出現的給定值:

use Illuminate\Support\Str;

$replaced = Str::replaceFirst('the', 'a', 'the quick brown fox jumps over the lazy dog');

// a quick brown fox jumps over the lazy dog

Str::replaceLast()

Str::replaceLast 方法替換字串中最後一次出現的給定值:

use Illuminate\Support\Str;

$replaced = Str::replaceLast('the', 'a', 'the quick brown fox jumps over the lazy dog');

// the quick brown fox jumps over a lazy dog

Str::replaceMatches()

Str::replaceMatches 方法用給定的替換字串替換字串中與模式匹配的所有部分:

use Illuminate\Support\Str;

$replaced = Str::replaceMatches(
    pattern: '/[^A-Za-z0-9]++/',
    replace: '',
    subject: '(+1) 501-555-1000'
)

// '15015551000'

replaceMatches 方法還接受一個閉包,該閉包將在與給定模式匹配的字串部分上調用,允許您在閉包內執行替換邏輯並返回替換後的值:

use Illuminate\Support\Str;

$replaced = Str::replaceMatches('/\d/', function (array $matches) {
    return '['.$matches[0].']';
}, '123');

// '[1][2][3]'

Str::replaceStart()

Str::replaceStart 方法僅在字串開頭出現給定值時替換第一次出現的值:

use Illuminate\Support\Str;

$replaced = Str::replaceStart('Hello', 'Laravel', 'Hello World');

// Laravel World

$replaced = Str::replaceStart('World', 'Laravel', 'Hello World');

// Hello World

Str::replaceEnd()

Str::replaceEnd 方法僅在值出現在字串結尾時才替換最後一次出現的值:

use Illuminate\Support\Str;

$replaced = Str::replaceEnd('World', 'Laravel', 'Hello World');

// Hello Laravel

$replaced = Str::replaceEnd('Hello', 'Laravel', 'Hello World');

// Hello World

Str::reverse()

Str::reverse 方法將給定的字串反轉:

use Illuminate\Support\Str;

$reversed = Str::reverse('Hello World');

// dlroW olleH

Str::singular()

Str::singular 方法將字串轉換為單數形式。此函數支援 Laravel 複數形式轉換器支援的任何語言

use Illuminate\Support\Str;

$singular = Str::singular('cars');

// car

$singular = Str::singular('children');

// child

Str::slug()

Str::slug 方法從給定的字串生成友好的 URL "slug":

use Illuminate\Support\Str;

$slug = Str::slug('Laravel 5 Framework', '-');

// laravel-5-framework

Str::snake()

Str::snake 方法將給定的字串轉換為 snake_case

use Illuminate\Support\Str;

$converted = Str::snake('fooBar');

// foo_bar

$converted = Str::snake('fooBar', '-');

// foo-bar

Str::squish()

Str::squish 方法從字串中刪除所有多餘的空格,包括單詞之間的多餘空格:

use Illuminate\Support\Str;

$string = Str::squish('    laravel    framework    ');

// laravel framework

Str::start()

Str::start 方法如果字串尚未以該值開頭,則將給定值的單個實例添加到字串中:

use Illuminate\Support\Str;

$adjusted = Str::start('this/string', '/');

// /this/string

$adjusted = Str::start('/this/string', '/');

// /this/string

Str::startsWith()

Str::startsWith 方法確定給定字串是否以給定值開頭:

use Illuminate\Support\Str;

$result = Str::startsWith('This is my name', 'This');

// true

如果傳遞了可能值的陣列,startsWith 方法將在字串以任何給定值開頭時返回 true

$result = Str::startsWith('This is my name', ['This', 'That', 'There']);

// true

Str::studly()

Str::studly 方法將給定的字串轉換為 StudlyCase

use Illuminate\Support\Str;

$converted = Str::studly('foo_bar');

// FooBar

Str::substr()

Str::substr 方法返回由開始和長度參數指定的字符串部分:

use Illuminate\Support\Str;

$converted = Str::substr('The Laravel Framework', 4, 7);

// Laravel

Str::substrCount()

Str::substrCount 方法返回給定字符串中給定值的出現次數:

use Illuminate\Support\Str;

$count = Str::substrCount('If you like ice cream, you will like snow cones.', 'like');

// 2

Str::substrReplace()

Str::substrReplace 方法替換字符串的一部分中的文本,從第三個參數指定的位置開始,並替換第四個參數指定的字符數。將 0 傳遞給方法的第四個參數將在指定位置插入字符串,而不替換字符串中的任何現有字符:

use Illuminate\Support\Str;

$result = Str::substrReplace('1300', ':', 2);
// 13:

$result = Str::substrReplace('1300', ':', 2, 0);
// 13:00

Str::swap()

Str::swap 方法使用 PHP 的 strtr 函數替換給定字符串中的多個值:

use Illuminate\Support\Str;

$string = Str::swap([
    'Tacos' =&gt; 'Burritos',
    'great' =&gt; 'fantastic',
], 'Tacos are great!');

// Burritos are fantastic!

Str::take()

Str::take 方法從字符串開頭返回指定數量的字符:

use Illuminate\Support\Str;

$taken = Str::take('Build something amazing!', 5);

// Build

Str::title()

Str::title 方法將給定字符串轉換為 Title Case

use Illuminate\Support\Str;

$converted = Str::title('a nice title uses the correct case');

// A Nice Title Uses The Correct Case

Str::toBase64()

Str::toBase64 方法將給定字符串轉換為 Base64:

use Illuminate\Support\Str;

$base64 = Str::toBase64('Laravel');

// TGFyYXZlbA==

Str::transliterate()

Str::transliterate 方法將嘗試將給定字符串轉換為其最接近的 ASCII 表示形式:

use Illuminate\Support\Str;

$email = Str::transliterate('ⓣⓔⓢⓣ@ⓛⓐⓡⓐⓥⓔⓛ.ⓒⓞⓜ');

// 'test@laravel.com'

Str::trim()

Str::trim 方法從給定字串的開頭和結尾刪除空格(或其他字符)。與 PHP 的原生 trim 函數不同,Str::trim 方法還會刪除 Unicode 空格字符:

use Illuminate\Support\Str;

$string = Str::trim(' foo bar ');

// 'foo bar'

Str::ltrim()

Str::ltrim 方法從給定字串的開頭刪除空格(或其他字符)。與 PHP 的原生 ltrim 函數不同,Str::ltrim 方法還會刪除 Unicode 空格字符:

use Illuminate\Support\Str;

$string = Str::ltrim('  foo bar  ');

// 'foo bar  '

Str::rtrim()

Str::rtrim 方法從給定字串的結尾刪除空格(或其他字符)。與 PHP 的原生 rtrim 函數不同,Str::rtrim 方法還會刪除 Unicode 空格字符:

use Illuminate\Support\Str;

$string = Str::rtrim('  foo bar  ');

// '  foo bar'

Str::ucfirst()

Str::ucfirst 方法返回首字母大寫的給定字串:

use Illuminate\Support\Str;

$string = Str::ucfirst('foo bar');

// Foo bar

Str::ucsplit()

Str::ucsplit 方法通過大寫字符將給定字串拆分為陣列:

use Illuminate\Support\Str;

$segments = Str::ucsplit('FooBar');

// [0 =&gt; 'Foo', 1 =&gt; 'Bar']

Str::upper()

Str::upper 方法將給定字串轉換為大寫:

use Illuminate\Support\Str;

$string = Str::upper('laravel');

// LARAVEL

Str::ulid()

Str::ulid 方法生成 ULID,這是一個緊湊、按時間排序的唯一標識符:

use Illuminate\Support\Str;

return (string) Str::ulid();

// 01gd6r360bp37zj17nxb55yv40

如果您想要檢索代表給定 ULID 創建日期和時間的 Illuminate\Support\Carbon 日期實例,您可以使用 Laravel 的 Carbon 整合提供的 createFromId 方法:

use Illuminate\Support\Carbon;
use Illuminate\Support\Str;

$date = Carbon::createFromId((string) Str::ulid());

在測試期間,"偽造" Str::ulid 方法返回的值可能很有用。為此,您可以使用 createUlidsUsing 方法:

use Symfony\Component\Uid\Ulid;

Str::createUlidsUsing(function () {
    return new Ulid('01HRDBNHHCKNW2AK4Z29SN82T9');
});

要指示 ulid 方法返回正常生成 ULID,您可以調用 createUlidsNormally 方法:

Str::createUlidsNormally();

Str::unwrap()

Str::unwrap 方法從給定的字符串開頭和結尾刪除指定的字符串:

use Illuminate\Support\Str;

Str::unwrap('-Laravel-', '-');

// Laravel

Str::unwrap('{framework: "Laravel"}', '{', '}');

// framework: "Laravel"

Str::uuid()

Str::uuid 方法生成一個 UUID(版本 4):

use Illuminate\Support\Str;

return (string) Str::uuid();

在測試期間,可能有用“偽造”Str::uuid 方法返回的值。為此,您可以使用 createUuidsUsing 方法:

use Ramsey\Uuid\Uuid;

Str::createUuidsUsing(function () {
    return Uuid::fromString('eadbfeac-5258-45c2-bab7-ccb9b5ef74f9');
});

要指示 uuid 方法返回正常生成 UUID,您可以調用 createUuidsNormally 方法:

Str::createUuidsNormally();

Str::uuid7()

Str::uuid7 方法生成一個 UUID(版本 7):

use Illuminate\Support\Str;

return (string) Str::uuid7();

可以將 DateTimeInterface 作為可選參數傳遞,該參數將用於生成有序的 UUID:

return (string) Str::uuid7(time: now());

Str::wordCount()

Str::wordCount 方法返回字符串包含的單詞數量:

use Illuminate\Support\Str;

Str::wordCount('Hello, world!'); // 2

Str::wordWrap()

Str::wordWrap 方法將字符串包裹到指定的字符數:

use Illuminate\Support\Str;

$text = "The quick brown fox jumped over the lazy dog."

Str::wordWrap($text, characters: 20, break: "<br>\n");

/*
The quick brown fox<br>
jumped over the lazy<br>
dog.
*/

Str::words()

The Str::words method limits the number of words in a string. An additional string may be passed to this method via its third argument to specify which string should be appended to the end of the truncated string:


``````php
use Illuminate\Support\Str;

return Str::words('Perfectly balanced, as all things should be.', 3, ' &gt;&gt;&gt;');

// Perfectly balanced, as &gt;&gt;&gt;

Str::wrap()

Str::wrap 方法使用額外的字符串或一對字符串包裹給定的字符串:

use Illuminate\Support\Str;

Str::wrap('Laravel', '"');

// "Laravel"

Str::wrap('is', before: 'This ', after: ' Laravel!');

// This is Laravel!

str()

The str function returns a new Illuminate\Support\Stringable instance of the given string. This function is equivalent to the Str::of method:


``````php
$string = str('Taylor')-&gt;append(' Otwell');

// 'Taylor Otwell'

如果未提供引數給 str 函數,該函數將返回一個 Illuminate\Support\Str 實例:

echo trans('messages.welcome');

如果指定的翻譯鍵不存在,trans 函數將返回給定的鍵。因此,使用上面的示例,如果翻譯鍵不存在,trans 函數將返回 messages.welcome

trans_choice()

trans_choice 函數使用變化來翻譯給定的翻譯鍵:

echo trans_choice('messages.notifications', $unreadCount);

如果指定的翻譯鍵不存在,trans_choice 函數將返回給定的鍵。因此,使用上面的示例,如果翻譯鍵不存在,trans_choice 函數將返回 messages.notifications

流暢字串

流暢字串提供了一個更流暢、面向對象的接口,用於處理字串值,允許您使用比傳統字串操作更可讀的語法鏈接多個字串操作。

after

after 方法返回字串中給定值之後的所有內容。如果值不存在於字串中,將返回整個字串:

use Illuminate\Support\Str;

$slice = Str::of('This is my name')-&gt;after('This is');

// ' my name'

afterLast

afterLast 方法返回字串中最後一次出現的給定值之後的所有內容。如果值不存在於字串中,將返回整個字串:

use Illuminate\Support\Str;

$slice = Str::of('App\Http\Controllers\Controller')-&gt;afterLast('\\');

// 'Controller'

apa

apa 方法將給定字串轉換為標題大小寫,遵循 APA 指南

use Illuminate\Support\Str;

$converted = Str::of('a nice title uses the correct case')-&gt;apa();

// A Nice Title Uses the Correct Case

append

append 方法將給定值附加到字串:

use Illuminate\Support\Str;

$string = Str::of('Taylor')-&gt;append(' Otwell');

// 'Taylor Otwell'

ascii

ascii 方法將嘗試將字串轉譯為 ASCII 值:

use Illuminate\Support\Str;

$string = Str::of('ü')-&gt;ascii();

// 'u'

basename

basename 方法將返回給定字串的尾部名稱組件:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz')-&gt;basename();

// 'baz'

如果需要,您可以提供一個“擴展”,該擴展將從尾部組件中刪除:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz.jpg')-&gt;basename('.jpg');

// 'baz'

before

before 方法返回字串中給定值之前的所有內容:

use Illuminate\Support\Str;

$slice = Str::of('This is my name')-&gt;before('my name');

// 'This is '

beforeLast

beforeLast 方法返回字串中最後一次出現的給定值之前的所有內容:

use Illuminate\Support\Str;

$slice = Str::of('This is my name')-&gt;beforeLast('is');

// 'This '

between

between 方法返回字串中兩個值之間的部分:

use Illuminate\Support\Str;

$converted = Str::of('This is my name')-&gt;between('This', 'name');

// ' is my '

betweenFirst

betweenFirst 方法返回字串中兩個值之間的可能最小部分:

use Illuminate\Support\Str;

$converted = Str::of('[a] bc [d]')-&gt;betweenFirst('[', ']');

// 'a'

camel

camel 方法將給定字串轉換為 camelCase

use Illuminate\Support\Str;

$converted = Str::of('foo_bar')-&gt;camel();

// 'fooBar'

charAt

charAt 方法返回指定索引處的字符。如果索引超出範圍,將返回 false

use Illuminate\Support\Str;

$character = Str::of('This is my name.')-&gt;charAt(6);

// 's'

classBasename

classBasename 方法返回給定類別的類別名稱,並刪除類別的命名空間:

use Illuminate\Support\Str;

$class = Str::of('Foo\Bar\Baz')-&gt;classBasename();

// 'Baz'

chopStart

chopStart 方法僅在字串開頭出現給定值時刪除該值的第一次出現:

use Illuminate\Support\Str;

$url = Str::of('https://laravel.com')-&gt;chopStart('https://');

// 'laravel.com'

您也可以傳遞一個陣列。如果字串以陣列中的任何值開頭,則該值將從字串中刪除:

use Illuminate\Support\Str;

$url = Str::of('http://laravel.com')-&gt;chopStart(['https://', 'http://']);

// 'laravel.com'

chopEnd

chopEnd 方法僅在字串結尾出現給定值時刪除該值的最後一次出現:

use Illuminate\Support\Str;

$url = Str::of('https://laravel.com')-&gt;chopEnd('.com');

// 'https://laravel'

您也可以傳遞一個陣列。如果字串以陣列中的任何值結尾,則該值將從字串中刪除:

use Illuminate\Support\Str;

$url = Str::of('http://laravel.com')-&gt;chopEnd(['.com', '.io']);

// 'http://laravel'

contains

contains 方法確定給定字串是否包含給定值。默認情況下,此方法區分大小寫:

use Illuminate\Support\Str;

$contains = Str::of('This is my name')-&gt;contains('my');

// true

您也可以傳遞一個值陣列,以確定給定字串是否包含陣列中的任何值:

use Illuminate\Support\Str;

$contains = Str::of('This is my name')-&gt;contains(['my', 'foo']);

// true

您可以通過將 ignoreCase 引數設置為 true 來禁用區分大小寫:

use Illuminate\Support\Str;

$contains = Str::of('This is my name')-&gt;contains('MY', ignoreCase: true);

// true

containsAll

containsAll 方法確定給定字串是否包含給定陣列中的所有值:

use Illuminate\Support\Str;

$containsAll = Str::of('This is my name')-&gt;containsAll(['my', 'name']);

// true

您可以通過將 ignoreCase 引數設置為 true 來禁用區分大小寫:

use Illuminate\Support\Str;

$containsAll = Str::of('This is my name')-&gt;containsAll(['MY', 'NAME'], ignoreCase: true);

// true

deduplicate

deduplicate 方法將字串中連續出現的字符替換為單個字符。默認情況下,該方法會去除空格:

use Illuminate\Support\Str;

$result = Str::of('The   Laravel   Framework')-&gt;deduplicate();

// The Laravel Framework

您可以通過將第二個引數作為要去除的不同字符傳遞給該方法:

use Illuminate\Support\Str;

$result = Str::of('The---Laravel---Framework')-&gt;deduplicate('-');

// The-Laravel-Framework

dirname

dirname 方法返回給定字串的父目錄部分:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz')-&gt;dirname();

// '/foo/bar'

如果需要,您可以指定要從字串中修剪的目錄級別數量:

use Illuminate\Support\Str;

$string = Str::of('/foo/bar/baz')-&gt;dirname(2);

// '/foo'

endsWith

endsWith 方法確定給定字串是否以給定值結尾:

use Illuminate\Support\Str;

$result = Str::of('This is my name')-&gt;endsWith('name');

// true

您也可以傳遞一個值陣列,以確定給定字串是否以陣列中的任何值結尾:

use Illuminate\Support\Str;

$result = Str::of('This is my name')-&gt;endsWith(['name', 'foo']);

// true

$result = Str::of('This is my name')-&gt;endsWith(['this', 'foo']);

// false

exactly

exactly 方法確定給定字串是否與另一個字串完全匹配:

use Illuminate\Support\Str;

$result = Str::of('Laravel')-&gt;exactly('Laravel');

// true

excerpt

excerpt 方法從字串中提取與該字串中的短語的第一個實例匹配的摘要:

use Illuminate\Support\Str;

$excerpt = Str::of('This is my name')-&gt;excerpt('my', [
    'radius' =&gt; 3
]);

// '...is my na...'

radius 選項默認為 100,允許您定義應出現在截斷字串每一側的字符數。

此外,您可以使用 omission 選項來更改將附加到截斷字串的字符串:

use Illuminate\Support\Str;

$excerpt = Str::of('This is my name')-&gt;excerpt('name', [
    'radius' =&gt; 3,
    'omission' =&gt; '(...) '
]);

// '(...) my name'

explode

explode 方法通過給定的分隔符拆分字串,並返回包含拆分字串的集合:

use Illuminate\Support\Str;

$collection = Str::of('foo bar baz')-&gt;explode(' ');

// collect(['foo', 'bar', 'baz'])

finish

finish 方法如果字串尚未以該值結尾,則將一個給定值的單個實例添加到字串中:

use Illuminate\Support\Str;

$adjusted = Str::of('this/string')-&gt;finish('/');

// this/string/

$adjusted = Str::of('this/string/')-&gt;finish('/');

// this/string/

headline

headline 方法將由大小寫、連字符或底線分隔的字串轉換為以空格分隔的字串,每個單詞的第一個字母大寫:

use Illuminate\Support\Str;

$headline = Str::of('taylor_otwell')-&gt;headline();

// Taylor Otwell

$headline = Str::of('EmailNotificationSent')-&gt;headline();

// Email Notification Sent

inlineMarkdown

inlineMarkdown 方法將 GitHub 風格的 Markdown 轉換為內聯 HTML,使用 CommonMark。但是,與 markdown 方法不同,它不會將所有生成的 HTML 包裹在區塊級元素中:

use Illuminate\Support\Str;

$html = Str::of('**Laravel**')-&gt;inlineMarkdown();

// <strong>Laravel</strong>

Markdown 安全性

默認情況下,Markdown 支持原始 HTML,當與原始用戶輸入一起使用時,將暴露跨站腳本(XSS)漏洞。根據 CommonMark 安全性文檔,您可以使用 html_input 選項來轉義或刪除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的鏈接。如果需要允許一些原始 HTML,您應該通過 HTML 淨化器處理編譯的 Markdown:

use Illuminate\Support\Str;

Str::of('Inject: <script>alert("Hello XSS!");</script>')-&gt;inlineMarkdown([
    'html_input' =&gt; 'strip',
    'allow_unsafe_links' =&gt; false,
]);

// Inject: alert("Hello XSS!");

is

is 方法確定給定字串是否與給定模式匹配。星號可以用作通配符值

use Illuminate\Support\Str;

$matches = Str::of('foobar')-&gt;is('foo*');

// true

$matches = Str::of('foobar')-&gt;is('baz*');

// false

isAscii

isAscii 方法確定給定字串是否為 ASCII 字串:

use Illuminate\Support\Str;

$result = Str::of('Taylor')-&gt;isAscii();

// true

$result = Str::of('ü')-&gt;isAscii();

// false

isEmpty

isEmpty 方法確定給定字串是否為空:

use Illuminate\Support\Str;

$result = Str::of('  ')-&gt;trim()-&gt;isEmpty();

// true

$result = Str::of('Laravel')-&gt;trim()-&gt;isEmpty();

// false

isNotEmpty

isNotEmpty 方法確定給定字串是否不為空:

use Illuminate\Support\Str;

$result = Str::of('  ')-&gt;trim()-&gt;isNotEmpty();

// false

$result = Str::of('Laravel')-&gt;trim()-&gt;isNotEmpty();

// true

isJson

isJson 方法確定給定字串是否為有效的 JSON:

use Illuminate\Support\Str;

$result = Str::of('[1,2,3]')-&gt;isJson();

// true

$result = Str::of('{"first": "John", "last": "Doe"}')-&gt;isJson();

// true

$result = Str::of('{first: "John", last: "Doe"}')-&gt;isJson();

// false

isUlid

isUlid 方法確定給定字串是否為 ULID:

use Illuminate\Support\Str;

$result = Str::of('01gd6r360bp37zj17nxb55yv40')-&gt;isUlid();

// true

$result = Str::of('Taylor')-&gt;isUlid();

// false

isUrl

isUrl 方法確定給定字串是否為 URL:

use Illuminate\Support\Str;

$result = Str::of('http://example.com')-&gt;isUrl();

// true

$result = Str::of('Taylor')-&gt;isUrl();

// false

isUrl 方法將考慮一個廣泛的協議範圍作為有效。但是,您可以通過將要考慮為有效的協議提供給 isUrl 方法來指定應該考慮為有效的協議:

$result = Str::of('http://example.com')-&gt;isUrl(['http', 'https']);

isUuid

isUuid 方法確定給定字串是否為 UUID:

use Illuminate\Support\Str;

$result = Str::of('5ace9ab9-e9cf-4ec6-a19d-5881212a452c')-&gt;isUuid();

// true

$result = Str::of('Taylor')-&gt;isUuid();

// false

kebab

kebab 方法將給定字串轉換為 kebab-case

use Illuminate\Support\Str;

$converted = Str::of('fooBar')-&gt;kebab();

// foo-bar

lcfirst

lcfirst 方法返回第一個字符小寫的給定字串:

use Illuminate\Support\Str;

$string = Str::of('Foo Bar')-&gt;lcfirst();

// foo Bar

length

length 方法返回給定字串的長度:

use Illuminate\Support\Str;

$length = Str::of('Laravel')-&gt;length();

// 7

limit

limit 方法將給定字串截斷為指定的長度:

use Illuminate\Support\Str;

$truncated = Str::of('The quick brown fox jumps over the lazy dog')-&gt;limit(20);

// The quick brown fox...

您也可以傳遞第二個引數來更改將附加到截斷字串末尾的字符串:

$truncated = Str::of('The quick brown fox jumps over the lazy dog')-&gt;limit(20, ' (...)');

```php
$truncated = Str::of('The quick brown fox')-&gt;limit(12, preserveWords: true);

// 快速...

lower

lower 方法將給定的字串轉換為小寫:

use Illuminate\Support\Str;

$result = Str::of('LARAVEL')-&gt;lower();

// 'laravel'

markdown

markdown 方法將 GitHub 風格的 Markdown 轉換為 HTML:

use Illuminate\Support\Str;

$html = Str::of('# Laravel')-&gt;markdown();

// <h1>Laravel</h1>

$html = Str::of('# Taylor <b>Otwell</b>')-&gt;markdown([
    'html_input' =&gt; 'strip',
]);

// <h1>Taylor Otwell</h1>

Markdown 安全性

預設情況下,Markdown 支援原始 HTML,這將在與原始使用者輸入一起使用時暴露跨站腳本(XSS)漏洞。根據 CommonMark 安全性文件,您可以使用 html_input 選項來轉義或刪除原始 HTML,並使用 allow_unsafe_links 選項來指定是否允許不安全的連結。如果您需要允許一些原始 HTML,您應該通過 HTML 淨化器處理編譯後的 Markdown:

use Illuminate\Support\Str;

Str::of('Inject: <script>alert("Hello XSS!");</script>')-&gt;markdown([
    'html_input' =&gt; 'strip',
    'allow_unsafe_links' =&gt; false,
]);

// <p>Inject: alert("Hello XSS!");</p>

mask

mask 方法使用重複的字符遮罩字串的一部分,可用於混淆字串的部分,例如電子郵件地址和電話號碼:

use Illuminate\Support\Str;

$string = Str::of('taylor@example.com')-&gt;mask('*', 3);

// tay***************

如果需要,您可以將負數作為 mask 方法的第三個或第四個參數,該方法將指示從字串末尾開始遮罩:

$string = Str::of('taylor@example.com')-&gt;mask('*', -15, 3);

// tay***@example.com

$string = Str::of('taylor@example.com')-&gt;mask('*', 4, -4);

// tayl**********.com

match

match 方法將返回與給定正則表達式模式匹配的字串部分:

use Illuminate\Support\Str;

$result = Str::of('foo bar')-&gt;match('/bar/');

// 'bar'

$result = Str::of('foo bar')-&gt;match('/foo (.*)/');

// 'bar'

matchAll

matchAll 方法將返回包含與給定正則表達式模式匹配的字串部分的集合:

use Illuminate\Support\Str;

$result = Str::of('bar foo bar')-&gt;matchAll('/bar/');

// collect(['bar', 'bar'])

如果在表達式中指定了匹配組,Laravel 將返回第一個匹配組的匹配的集合:

use Illuminate\Support\Str;

$result = Str::of('bar fun bar fly')-&gt;matchAll('/f(\w*)/');

// collect(['un', 'ly']);

如果找不到匹配,將返回一個空集合。

isMatch

isMatch 方法將在字串與給定正則表達式匹配時返回 true

use Illuminate\Support\Str;

$result = Str::of('foo bar')-&gt;isMatch('/foo (.*)/');

// true

$result = Str::of('laravel')-&gt;isMatch('/foo (.*)/');

// false

newLine

newLine 方法將「換行」字符附加到字串:

use Illuminate\Support\Str;

$padded = Str::of('Laravel')-&gt;newLine()-&gt;append('Framework');

// 'Laravel
//  Framework'

padBoth

padBoth 方法使用另一個字串將字串的兩側填充到所需長度,包裹 PHP 的 str_pad 函數:

use Illuminate\Support\Str;

$padded = Str::of('James')-&gt;padBoth(10, '_');

// '__James___'

$padded = Str::of('James')-&gt;padBoth(10);

// '  James   '

padLeft

padLeft 方法使用另一個字串將字串的左側填充到所需長度,包裹 PHP 的 str_pad 函數:

use Illuminate\Support\Str;

$padded = Str::of('James')-&gt;padLeft(10, '-=');

// '-=-=-James'

$padded = Str::of('James')-&gt;padLeft(10);

// '     James'

padRight

padRight 方法使用另一個字串將字串的右側填充到所需長度,包裹 PHP 的 str_pad 函數:

use Illuminate\Support\Str;

$padded = Str::of('James')-&gt;padRight(10, '-');

// 'James-----'

$padded = Str::of('James')-&gt;padRight(10);

// 'James     '

pipe

pipe 方法允許您通過將當前值傳遞給給定的可調用函數來轉換字串:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$hash = Str::of('Laravel')-&gt;pipe('md5')-&gt;prepend('Checksum: ');

// 'Checksum: a5c95b86291ea299fcbe64458ed12702'

$closure = Str::of('foo')-&gt;pipe(function (Stringable $str) {
    return 'bar';
});

// 'bar'

plural

plural 方法將單數字串轉換為其複數形式。此函數支持 Laravel 複數形式支持的任何語言

use Illuminate\Support\Str;

$plural = Str::of('car')-&gt;plural();

// cars

$plural = Str::of('child')-&gt;plural();

// children

您可以將整數作為函數的第二個參數,以獲取字串的單數或複數形式:

use Illuminate\Support\Str;

$plural = Str::of('child')-&gt;plural(2);

// children

$plural = Str::of('child')-&gt;plural(1);

// child

position

position 方法返回字串中子字串的第一次出現的位置。如果字串中不存在子字串,則返回 false

use Illuminate\Support\Str;

$position = Str::of('Hello, World!')-&gt;position('Hello');

// 0

$position = Str::of('Hello, World!')-&gt;position('W');

// 7

prepend

prepend 方法將給定的值附加到字串:

use Illuminate\Support\Str;

$string = Str::of('Framework')-&gt;prepend('Laravel ');

// Laravel Framework

remove

remove 方法從字串中刪除給定的值或值陣列:

use Illuminate\Support\Str;

$string = Str::of('Arkansas is quite beautiful!')-&gt;remove('quite');

// Arkansas is beautiful!

您也可以將 false 作為第二個參數傳遞,以忽略大小寫刪除字串。

repeat

repeat 方法重複給定的字串:

use Illuminate\Support\Str;

$repeated = Str::of('a')-&gt;repeat(5);

// aaaaa

replace

replace 方法替換字串中的給定字串:

use Illuminate\Support\Str;

$replaced = Str::of('Laravel 6.x')-&gt;replace('6.x', '7.x');

// Laravel 7.x

replace 方法還接受 caseSensitive 參數。默認情況下,replace 方法區分大小寫:

$replaced = Str::of('macOS 13.x')-&gt;replace(
    'macOS', 'iOS', caseSensitive: false
);

replaceArray

replaceArray 方法使用陣列依次替換字串中的給定值:

use Illuminate\Support\Str;

$string = 'The event will take place between ? and ?';

$replaced = Str::of($string)-&gt;replaceArray('?', ['8:30', '9:00']);

// The event will take place between 8:30 and 9:00

replaceFirst

replaceFirst 方法替換字串中第一次出現的給定值:

use Illuminate\Support\Str;

$replaced = Str::of('the quick brown fox jumps over the lazy dog')-&gt;replaceFirst('the', 'a');

// a quick brown fox jumps over the lazy dog

replaceLast

replaceLast 方法替換字串中最後一次出現的給定值:

use Illuminate\Support\Str;

$replaced = Str::of('the quick brown fox jumps over the lazy dog')-&gt;replaceLast('the', 'a');

// the quick brown fox jumps over a lazy dog

replaceMatches

replaceMatches 方法使用給定的替換字串替換與給定模式匹配的字串部分:

use Illuminate\Support\Str;

$replaced = Str::of('(+1) 501-555-1000')-&gt;replaceMatches('/[^A-Za-z0-9]++/', '')

// '15015551000'

replaceMatches 方法還接受一個閉包,該閉包將在每個與給定模式匹配的字串部分中調用,允許您在閉包內執行替換邏輯並返回替換後的值:

use Illuminate\Support\Str;

$replaced = Str::of('123')-&gt;replaceMatches('/\d/', function (array $matches) {
    return '['.$matches[0].']';
});

// '[1][2][3]'

replaceStart

replaceStart 方法僅在字串開頭出現給定值時替換第一次出現的值:

use Illuminate\Support\Str;

$replaced = Str::of('Hello World')-&gt;replaceStart('Hello', 'Laravel');

// Laravel World

$replaced = Str::of('Hello World')-&gt;replaceStart('World', 'Laravel');

// Hello World

replaceEnd

replaceEnd 方法僅在字串結尾出現給定值時替換最後一次出現的值:

use Illuminate\Support\Str;

$replaced = Str::of('Hello World')-&gt;replaceEnd('World', 'Laravel');

// Hello Laravel

$replaced = Str::of('Hello World')-&gt;replaceEnd('Hello', 'Laravel');

// Hello World

scan

scan 方法將字串中的輸入解析為集合,該集合符合 sscanf PHP 函數支持的格式

use Illuminate\Support\Str;

$collection = Str::of('filename.jpg')-&gt;scan('%[^.].%s');

// collect(['filename', 'jpg'])

singular

singular 方法將字串轉換為其單數形式。此函數支持 Laravel 複數形式支持的任何語言

use Illuminate\Support\Str;

$singular = Str::of('cars')-&gt;singular();

// car

$singular = Str::of('children')-&gt;singular();

// child

slug

slug 方法從給定的字串生成 URL 友好的「slug」:

use Illuminate\Support\Str;

$slug = Str::of('Laravel Framework')-&gt;slug('-');

// laravel-framework

snake

snake 方法將給定的字串轉換為 snake_case

use Illuminate\Support\Str;

$converted = Str::of('fooBar')-&gt;snake();

// foo_bar

split

split 方法使用正則表達式將字串拆分為集合:

use Illuminate\Support\Str;

$segments = Str::of('one, two, three')-&gt;split('/[\s,]+/');

// collect(["one", "two", "three"])

squish

squish 方法從字串中刪除所有多餘的空格,包括單詞之間的多餘空格:

use Illuminate\Support\Str;

$string = Str::of('    laravel    framework    ')-&gt;squish();

// laravel framework

start

start 方法如果字串尚未以該值開頭,則將給定值添加到字串中:

use Illuminate\Support\Str;

$adjusted = Str::of('this/string')-&gt;start('/');

// /this/string

$adjusted = Str::of('/this/string')-&gt;start('/');

// /this/string

startsWith

startsWith 方法確定給定字串是否以給定值開頭:

use Illuminate\Support\Str;

$result = Str::of('This is my name')-&gt;startsWith('This');

// true

stripTags

stripTags 方法從字串中刪除所有 HTML 和 PHP 標籤:

use Illuminate\Support\Str;

$result = Str::of('<a href="https://laravel.com">Taylor <b>Otwell</b></a>')-&gt;stripTags();

// Taylor Otwell

$result = Str::of('<a href="https://laravel.com">Taylor <b>Otwell</b></a>')-&gt;stripTags('<b>');

// Taylor <b>Otwell</b>

studly

studly 方法將給定的字串轉換為 StudlyCase

use Illuminate\Support\Str;

$converted = Str::of('foo_bar')-&gt;studly();

// FooBar

substr

substr 方法返回由給定的開始和長度參數指定的字串部分:

use Illuminate\Support\Str;

$string = Str::of('Laravel Framework')-&gt;substr(8);

// Framework

$string = Str::of('Laravel Framework')-&gt;substr(8, 5);

// Frame

substrReplace

substrReplace 方法替換字串的一部分中的文本,從第二個參數指定的位置開始,替換第三個參數指定的字符數。將 0 傳遞給方法的第三個參數將在指定位置插入字串,而不替換字串中的任何現有字符:

use Illuminate\Support\Str;

$string = Str::of('1300')-&gt;substrReplace(':', 2);

// 13:

$string = Str::of('The Framework')-&gt;substrReplace(' Laravel', 3, 0);

// The Laravel Framework

swap

swap 方法使用 PHP 的 strtr 函數替換字串中的多個值:

use Illuminate\Support\Str;

$string = Str::of('Tacos are great!')
    -&gt;swap([
        'Tacos' =&gt; 'Burritos',
        'great' =&gt; 'fantastic',
    ]);

// Burritos are fantastic!

take

take 方法從字串開頭返回指定數量的字符:

use Illuminate\Support\Str;

$taken = Str::of('Build something amazing!')-&gt;take(5);

// Build

tap

tap 方法將字串傳遞給給定的閉包,允許您檢查和與字串交互,而不影響字串本身。無論閉包返回什麼,tap 方法都將返回原始字串:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('Laravel')
    -&gt;append(' Framework')
    -&gt;tap(function (Stringable $string) {
        dump('String after append: '.$string);
    })
    -&gt;upper();

// LARAVEL FRAMEWORK

test

test 方法確定字串是否與給定的正則表達式模式匹配:

use Illuminate\Support\Str;

$result = Str::of('Laravel Framework')-&gt;test('/Laravel/');

// true

title

title 方法將給定的字串轉換為 Title Case

use Illuminate\Support\Str;

$converted = Str::of('a nice title uses the correct case')-&gt;title();

// A Nice Title Uses The Correct Case

toBase64

toBase64 方法將給定的字串轉換為 Base64:

use Illuminate\Support\Str;

$base64 = Str::of('Laravel')-&gt;toBase64();

// TGFyYXZlbA==

toHtmlString

toHtmlString 方法將給定的字串轉換為 Illuminate\Support\HtmlString 實例,在 Blade 模板中呈現時不會被轉義:

use Illuminate\Support\Str;

```php
$htmlString = Str::of('Nuno Maduro')-&gt;toHtmlString();

transliterate

transliterate 方法將嘗試將給定的字串轉換為最接近的 ASCII 表示形式:

use Illuminate\Support\Str;

$email = Str::of('ⓣⓔⓢⓣ@ⓛⓐⓡⓐⓥⓔⓛ.ⓒⓞⓜ')-&gt;transliterate()

// 'test@laravel.com'

trim

trim 方法修剪給定的字串。不同於 PHP 的原生 trim 函式,Laravel 的 trim 方法還會移除 Unicode 空白字元:

use Illuminate\Support\Str;

$string = Str::of('  Laravel  ')-&gt;trim();

// 'Laravel'

$string = Str::of('/Laravel/')-&gt;trim('/');

// 'Laravel'

ltrim

ltrim 方法修剪字串的左側。不同於 PHP 的原生 ltrim 函式,Laravel 的 ltrim 方法還會移除 Unicode 空白字元:

use Illuminate\Support\Str;

$string = Str::of('  Laravel  ')-&gt;ltrim();

// 'Laravel  '

$string = Str::of('/Laravel/')-&gt;ltrim('/');

// 'Laravel/'

rtrim

rtrim 方法修剪給定字串的右側。不同於 PHP 的原生 rtrim 函式,Laravel 的 rtrim 方法還會移除 Unicode 空白字元:

use Illuminate\Support\Str;

$string = Str::of('  Laravel  ')-&gt;rtrim();

// '  Laravel'

$string = Str::of('/Laravel/')-&gt;rtrim('/');

// '/Laravel'

ucfirst

ucfirst 方法將給定的字串的第一個字元轉為大寫:

use Illuminate\Support\Str;

$string = Str::of('foo bar')-&gt;ucfirst();

// Foo bar

ucsplit

ucsplit 方法將給定的字串按大寫字元拆分為集合:

use Illuminate\Support\Str;

$string = Str::of('Foo Bar')-&gt;ucsplit();

// collect(['Foo', 'Bar'])

unwrap

unwrap 方法從給定的字串開頭和結尾移除指定的字串:

use Illuminate\Support\Str;

Str::of('-Laravel-')-&gt;unwrap('-');

// Laravel

Str::of('{framework: "Laravel"}')-&gt;unwrap('{', '}');

// framework: "Laravel"

upper

upper 方法將給定的字串轉換為大寫:

use Illuminate\Support\Str;

$adjusted = Str::of('laravel')-&gt;upper();

// LARAVEL

when

when 方法在給定條件為 true 時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('Taylor')
    -&gt;when(true, function (Stringable $string) {
        return $string-&gt;append(' Otwell');
    });

// 'Taylor Otwell'

如有必要,您可以將另一個閉包作為 when 方法的第三個參數傳遞。如果條件參數求值為 false,則將執行此閉包。

whenContains

whenContains 方法在字串包含給定值時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('tony stark')
    -&gt;whenContains('tony', function (Stringable $string) {
        return $string-&gt;title();
    });

// 'Tony Stark'

如有必要,您可以將另一個閉包作為 when 方法的第三個參數傳遞。如果字串不包含給定值,則將執行此閉包。

您還可以傳遞值陣列以確定給定字串是否包含陣列中的任何值:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('tony stark')
    -&gt;whenContains(['tony', 'hulk'], function (Stringable $string) {
        return $string-&gt;title();
    });

// Tony Stark

whenContainsAll

whenContainsAll 方法在字串包含所有給定子字串時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('tony stark')
    -&gt;whenContainsAll(['tony', 'stark'], function (Stringable $string) {
        return $string-&gt;title();
    });

// 'Tony Stark'

如有必要,您可以將另一個閉包作為 when 方法的第三個參數傳遞。如果條件參數求值為 false,則將執行此閉包。

whenEmpty

whenEmpty 方法在字串為空時調用給定的閉包。如果閉包返回一個值,該值也將被 whenEmpty 方法返回。如果閉包不返回值,則將返回流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('  ')-&gt;whenEmpty(function (Stringable $string) {
    return $string-&gt;trim()-&gt;prepend('Laravel');
});

// 'Laravel'

whenNotEmpty

whenNotEmpty 方法在字串不為空時調用給定的閉包。如果閉包返回一個值,該值也將被 whenNotEmpty 方法返回。如果閉包不返回值,則將返回流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('Framework')-&gt;whenNotEmpty(function (Stringable $string) {
    return $string-&gt;prepend('Laravel ');
});

// 'Laravel Framework'

whenStartsWith

whenStartsWith 方法在字串以給定子字串開頭時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('disney world')-&gt;whenStartsWith('disney', function (Stringable $string) {
    return $string-&gt;title();
});

// 'Disney World'

whenEndsWith

whenEndsWith 方法在字串以給定子字串結尾時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('disney world')-&gt;whenEndsWith('world', function (Stringable $string) {
    return $string-&gt;title();
});

// 'Disney World'

whenExactly

whenExactly 方法在字串完全匹配給定字串時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('laravel')-&gt;whenExactly('laravel', function (Stringable $string) {
    return $string-&gt;title();
});

// 'Laravel'

whenNotExactly

whenNotExactly 方法在字串不完全匹配給定字串時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('framework')-&gt;whenNotExactly('laravel', function (Stringable $string) {
    return $string-&gt;title();
});

// 'Framework'

whenIs

whenIs 方法在字串匹配給定模式時調用給定的閉包。星號可用作萬用值。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('foo/bar')-&gt;whenIs('foo/*', function (Stringable $string) {
    return $string-&gt;append('/baz');
});

// 'foo/bar/baz'

whenIsAscii

whenIsAscii 方法在字串為 7 位 ASCII 時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('laravel')-&gt;whenIsAscii(function (Stringable $string) {
    return $string-&gt;title();
});

// 'Laravel'

whenIsUlid

whenIsUlid 方法在字串為有效的 ULID 時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;

$string = Str::of('01gd6r360bp37zj17nxb55yv40')-&gt;whenIsUlid(function (Stringable $string) {
    return $string-&gt;substr(0, 8);
});

// '01gd6r36'

whenIsUuid

whenIsUuid 方法在字串為有效的 UUID 時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('a0a2a2d2-0b87-4a18-83f2-2529882be2de')-&gt;whenIsUuid(function (Stringable $string) {
    return $string-&gt;substr(0, 8);
});

// 'a0a2a2d2'

whenTest

whenTest 方法在字串匹配給定正則表達式時調用給定的閉包。閉包將接收流暢字串實例:

use Illuminate\Support\Str;
use Illuminate\Support\Stringable;

$string = Str::of('laravel framework')-&gt;whenTest('/laravel/', function (Stringable $string) {
    return $string-&gt;title();
});

// 'Laravel Framework'

wordCount

wordCount 方法返回字串包含的單詞數量:

use Illuminate\Support\Str;
Str::of('Hello, world!')-&gt;wordCount(); // 2

words

words 方法限制字串中的字數。如有必要,您可以指定一個附加的字串,該字串將附加到被截斷的字串後面:

use Illuminate\Support\Str;

$string = Str::of('Perfectly balanced, as all things should be.')-&gt;words(3, ' &gt;&gt;&gt;');

// Perfectly balanced, as &gt;&gt;&gt;

wrap

wrap 方法使用額外的字串或一對字串將給定的字串包裹起來:


use Illuminate\Support\Str;

Str::of('Laravel')-&gt;wrap('"');

// "Laravel"

Str::is('is')-&gt;wrap(before: 'This ', after: ' Laravel!');

// This is Laravel!
```</b>