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run code in 300+ PHP versions simultaneously
<pre><?php echo phpversion() . "\n\n"; //* function foo($func) { $func("Johnny", 2, 3, 4); } $mfunc = function($a, $b, $c, $d) { echo "Hello, $a"; }; foo($mfunc); //*/ ?></pre>

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35.13 ms | 402 KiB | 5 Q