3v4l.org

run code in 300+ PHP versions simultaneously
<?php a = function($cnt) { for($i=1;$i<$cnt;$i++) { yield($i); } } while($b = $a(100)) { echo $b; }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28, 5.4.0 - 5.4.23
Parse error: syntax error, unexpected '=' in /in/fQlgC on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '=' in /in/fQlgC on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/fQlgC on line 2
Process exited with code 255.

preferences:
234.25 ms | 1395 KiB | 113 Q