3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function a($number){ return (b($number)* $ number); } function b(&$number){ ++$number; } echo a(5); ?>
Output for 5.4.0 - 5.4.29
Parse error: syntax error, unexpected 'number' (T_STRING), expecting variable (T_VARIABLE) or '$' in /in/ZmhaA on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING, expecting T_VARIABLE or '$' in /in/ZmhaA on line 3
Process exited with code 255.