3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo( $n ) { echo '::call'; return $n*2; } for ( $i = 0, $i < foo(2); $i++){}
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
Parse error: syntax error, unexpected ')', expecting ';' in /in/2nA3o on line 9
Process exited with code 255.
preferences:
177.96 ms | 1395 KiB | 55 Q