3v4l.org

run code in 300+ PHP versions simultaneously
<?php function x($n) { for($i = 1; $i <= $n; $i++) { if ($n % $i == 0 && $i != $n) { $factors[] = $i; echo "$i "; } } return (array_sum($factors) == $n) ? printf "[Perfect]" : printf "[Imperfect]"; } x(42);
Output for 5.4.0 - 5.4.12
Parse error: syntax error, unexpected '"[Perfect]"' (T_CONSTANT_ENCAPSED_STRING) in NXHt6 on line 9
Process exited with code 255.
Output for 5.3.0 - 5.3.22
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in NXHt6 on line 9
Process exited with code 255.
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