3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo2 { define("echo", 0); var_dump(echo, TRUE); }
Output for 5.4.0 - 5.4.27
Parse error: syntax error, unexpected 'echo' (T_ECHO), expecting ')' in /in/qjCl6 on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_ECHO, expecting ')' in /in/qjCl6 on line 5
Process exited with code 255.
preferences:
205.65 ms | 1399 KiB | 64 Q