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run code in 300+ PHP versions simultaneously
<?php // In response to http://www.php.net/manual/en/language.constants.predefined.php#113130 // In fact, you can define magic constants too. (@__DIR__ == '__DIR__') && define('__DIR__', dirname(__FILE__)); echo "result of var_dump(__DIR__):\r\n"; var_dump(__DIR__); var_dump(__VERSION__);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
result of var_dump(__DIR__): string(3) "/in" Fatal error: Uncaught Error: Undefined constant "__VERSION__" in /in/CcWiA:10 Stack trace: #0 {main} thrown in /in/CcWiA on line 10
Process exited with code 255.
Output for 7.2.6 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
result of var_dump(__DIR__): string(3) "/in" Warning: Use of undefined constant __VERSION__ - assumed '__VERSION__' (this will throw an Error in a future version of PHP) in /in/CcWiA on line 10 string(11) "__VERSION__"
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 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
result of var_dump(__DIR__): string(3) "/in" Notice: Use of undefined constant __VERSION__ - assumed '__VERSION__' in /in/CcWiA on line 10 string(11) "__VERSION__"
preferences:
250.24 ms | 404 KiB | 354 Q