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@ 2013-12-28T10:25:32Z

<?php

$test = '&#x4E2D;';
$anchor = mb_convert_encoding($test, 'UTF-8', 'GB2312');

if (preg_match("/[\p{Han}]/simu", $anchor)) {
    echo 'Yay';
}

Output
Performance
VLD
References
Branches

mb_convert_encoding: documentation ( source)
preg_match: documentation ( source)

preferences:dark modelive preview

41.73 ms | 402 KiB | 5 Q