3v4l.org

run code in 300+ PHP versions simultaneously
<?php xhprof_enable(); $foo = strlen("foo bar"); function test_func() { $i = 0; while ($i < 1000000) { $i += 1; } } test_func(); function recurse($x) { if ($x < 0) { return; } return recurse($x - 1); } recurse(10); $xhprof_data = xhprof_disable(); print_r($xhprof_data); ?>

preferences:
49.79 ms | 402 KiB | 5 Q