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@ 2014-02-12T15:38:42Z

<?php
class Test
{
    public function fun1(){
        static $var = 1;
        return $var++;
    }

    public function fun2(){
        echo preg_replace_callback('/.*/', function($find){return $this->fun1().$find[0];}, 't');
    }
}

$t = new Test;

$t->fun2();
echo 3;

Output
Performance
VLD
References
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preg_replace_callback: documentation ( source)

preferences:dark modelive preview

34.11 ms | 402 KiB | 5 Q