php簡單實現(xiàn)多字節(jié)字符串翻轉(zhuǎn)的方法

    本文實例講述了php簡單實現(xiàn)多字節(jié)字符串翻轉(zhuǎn)的方法。分享給大家供大家參考。具體實現(xiàn)方法如下：
    <?php
    function mb_strev ($string, $encoding = null) {
    if ($encoding === null) {
    $encoding = mb_detect_encoding($string);
    }
    $length = mb_strlen($string, $encoding);
    $reversed = '';
    while($length-- > 0) {
    $reversed .= mb_substring($string, $length, 1, $encoding);
    }
    return $reversed;
    }