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实现PHP中的hex2bin

WBOY
Release： 2016-06-08 17:31:12
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<script>ec(2);</script>
php中有 bin2hex方法，但没有 hex2bin方法，以下简单实现 hex2bin ：



php
function hex2bin($data) {
     $len = strlen($data);
     return pack("H" . $len, $data); } 
?>  

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