3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function fibonacci() { $last = 0; $current = 1; yield 1; while (true) { $current = $last + $current; $last = $current - $last; yield $current; } } foreach (fibonacci() as $number) { echo $number . "\n"; }
Output for 5.4.0 - 5.4.25
Parse error: syntax error, unexpected '1' (T_LNUMBER) in /in/isMuY on line 7
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_LNUMBER in /in/isMuY on line 7
Process exited with code 255.