PHP8中的函数：str_ends_with()，更快速的字符串结尾判断方法

/**
 * Check if a string ends with a given substring.
 *
 * @param string $haystack The input string.
 * @param string $needle The substring to look for.
 * @return bool `true` if the input string ends with the given string, `false` otherwise.
 */
function str_ends_with(string $haystack, string $needle): bool {}

$string = 'hello world';
$endsWithWorld = str_ends_with($string, 'world');

if ($endsWithWorld) {
    echo 'Yes, the string ends with "world".';
} else {
    echo 'No, the string does not end with "world".';
}

Yes, the string ends with "world".

$string = 'hello world';

// 方法一：使用substr()函数和strlen()函数进行判断
if (substr($string, -strlen('world')) === 'world') {
    echo 'Yes, the string ends with "world".';
} else {
    echo 'No, the string does not end with "world".';
}

// 方法二：使用preg_match()函数正则匹配
if (preg_match('/world$/', $string)) {
    echo 'Yes, the string ends with "world".';
} else {
    echo 'No, the string does not end with "world".';
}