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run code in 300+ PHP versions simultaneously
<?php function x($n){ for($i=1;$i<$n;$i++){ if($n%$i==0){ $f[]=$i; echo"$i "; } } echo array_sum($f)==$n?"P":"I"; } for($b=1;$b<100000;$b++){ x{&b}; }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
Parse error: syntax error, unexpected '{' in /in/VMkBJ on line 13
Process exited with code 255.

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329.36 ms | 1388 KiB | 274 Q