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@ 2013-04-03T05:22:46Z

<?php

    $string=' دد';
    var_dump(preg_replace('#(?:^\s+|\s+$)#u', '', $string));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive preview

72.91 ms | 405 KiB | 5 Q