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@ 2014-09-09T06:11:22Z

<?php
        // $opt_dupa = 'a';
		$o['dupa'] = 'b';
        extract((array) $o, EXTR_PREFIX_ALL , 'opt_');
var_dump($opt_dupa);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
extract: documentation ( source)

preferences:dark modelive preview

62.36 ms | 402 KiB | 5 Q