3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('FALSEE', 1, true); $a = false; $b = FALSEE; var_dump($a, $b); var_dump($a, $b);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Warning: define(): Argument #3 ($case_insensitive) is ignored since declaration of case-insensitive constants is no longer supported in /in/qFD22 on line 3 bool(false) int(1) bool(false) int(1)
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: define(): Declaration of case-insensitive constants is deprecated in /in/qFD22 on line 3 bool(false) int(1) bool(false) int(1)
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.32 - 7.3.33
bool(false) int(1) bool(false) int(1)
preferences:
154.93 ms | 402 KiB | 242 Q