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@ 2016-03-29T09:16:50Z

<?php

$a = "";

function foo() {
    return "bar";
}

$eval = '$a = ' .foo() . ';';
var_dump($eval);

eval($eval);

echo $a;

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

62.25 ms | 402 KiB | 5 Q