php [php：mb_str_replace（）] DBがutf8じゃないfuckoff案件でstr_replaceする场合のマルチバイト対応。＃php

Posted 2021-05-05

function mb_str_replace($search, $replace, $subject, $encoding = null) {
    $tmp = mb_regex_encoding();
    mb_regex_encoding(func_num_args() > 3 ? $encoding : mb_internal_encoding());
    foreach ((array)$search as $i => $s) {
        if (!is_array($replace)) {
            $r = $replace;
        } elseif (isset($replace[$i])) {
            $r = $replace[$i];
        } else {
            $r = '';
        }
        $s = mb_ereg_replace('[.\\\\+*?\\[^$(){}|]', '\\\\0', $s);
        $subject = mb_ereg_replace($s, $r, $subject);
    }
    mb_regex_encoding($tmp);
    return $subject;
}

//refs: http://qiita.com/mpyw/items/ceae0ed5285093c76087