3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('$', 1); var_dump( $ === 1 );
Output for 5.4.0 - 5.4.22
Parse error: syntax error, unexpected '===' (T_IS_IDENTICAL), expecting variable (T_VARIABLE) or '$' in /in/lpIij on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_IS_IDENTICAL, expecting T_VARIABLE or '$' in /in/lpIij on line 4
Process exited with code 255.

preferences:
185.41 ms | 1386 KiB | 58 Q