3v4l.org

run code in 300+ PHP versions simultaneously
<?php $c = get_defined_constants(true); $c = array_keys($c['tokenizer']); sort($c); for ($c as $cc) print $cc . "\n";
Output for 5.4.0 - 5.4.30
Parse error: syntax error, unexpected 'as' (T_AS), expecting ';' in /in/occXf on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_AS, expecting ';' in /in/occXf on line 6
Process exited with code 255.
preferences:
196.01 ms | 1395 KiB | 67 Q