3v4l.org

run code in 300+ PHP versions simultaneously
<?php function b() {echo 'b';} (function a(){return 'b';})();
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.15
Parse error: syntax error, unexpected 'a' (T_STRING), expecting '(' in /in/XNLG4 on line 4
Process exited with code 255.
preferences:
157.94 ms | 1395 KiB | 22 Q