告别繁琐：如何使用yiisoft/strings提升PHP字符串处理效率

<pre class="brush:php;toolbar:false;">composer require yiisoft/strings

<pre class="brush:php;toolbar:false;">use Yiisoft\Strings\StringHelper;

// 截取字符串
$substring = StringHelper::substring('Hello World', 0, 5); // 输出：Hello

// 转换为小写
$lowercase = StringHelper::lowercase('Hello World'); // 输出：hello world

// 判断字符串是否以指定字符串开头
$startsWith = StringHelper::startsWith('Hello World', 'Hello'); // 输出：true

<pre class="brush:php;toolbar:false;">use Yiisoft\Strings\NumericHelper;

// 转换为序数词
$ordinal = NumericHelper::toOrdinal(3); // 输出：3rd

<pre class="brush:php;toolbar:false;">use Yiisoft\Strings\Inflector;

$inflector = new Inflector();

// 转换为 slug
$slug = $inflector->toSlug('Hello World'); // 输出：hello-world

// 转换为 PascalCase
$pascalCase = $inflector->toPascalCase('hello world'); // 输出：HelloWorld

<pre class="brush:php;toolbar:false;">use Yiisoft\Strings\WildcardPattern;

$pattern = new WildcardPattern('test*');

// 匹配字符串
$match = $pattern->match('test123'); // 输出：true

<pre class="brush:php;toolbar:false;">use Yiisoft\Strings\CombinedRegexp;
use Yiisoft\Strings\MemoizedCombinedRegexp;

$patterns = [
    'first',
    'second',
    '^a\d$',
];
$regexp = new MemoizedCombinedRegexp(new CombinedRegexp($patterns, 'i'));
$regexp->matches('a5'); // true – matches the third pattern
$regexp->matches('A5'); // true – matches the third pattern because of `i` flag that is applied to all regular expressions
$regexp->getMatchingPattern('a5'); // '^a\d$' – the pattern that matched
$regexp->getMatchingPatternPosition('a5'); // 2 – the index of the pattern in the array
$regexp->getCompiledPattern(); // '~(?|first|second()|^a\d$()())~'