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run code in 300+ PHP versions simultaneously
<?php define(TRUE, FALSE); define(FALSE, TRUE); define(0, 1); define(null, 1); if(null) echo 'no';
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: define(): Passing null to parameter #1 ($constant_name) of type string is deprecated in /in/DCC9r on line 5 Warning: Constant already defined in /in/DCC9r on line 5
Output for 8.0.0 - 8.0.30
Warning: Constant already defined in /in/DCC9r on line 5
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Constant already defined in /in/DCC9r on line 5
Output for 7.3.32 - 7.3.33, 7.4.26
preferences:
290.8 ms | 401 KiB | 460 Q