3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace N; define('false', '- false -'); define('FALSE', '- FALSE -'); define('null', '- null -'); define('NULL', '- NULL -'); var_export(array(TRUE, true, FALSE, false, NULL, null));
Output for 8.5.0
Warning: Constant false already defined, this will be an error in PHP 9 in /in/JusvB on line 3 Warning: Constant FALSE already defined, this will be an error in PHP 9 in /in/JusvB on line 4 Warning: Constant null already defined, this will be an error in PHP 9 in /in/JusvB on line 5 Warning: Constant NULL already defined, this will be an error in PHP 9 in /in/JusvB on line 6 array ( 0 => true, 1 => true, 2 => false, 3 => false, 4 => NULL, 5 => NULL, )
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14
Warning: Constant false already defined in /in/JusvB on line 3 Warning: Constant FALSE already defined in /in/JusvB on line 4 Warning: Constant null already defined in /in/JusvB on line 5 Warning: Constant NULL already defined in /in/JusvB on line 6 array ( 0 => true, 1 => true, 2 => false, 3 => false, 4 => NULL, 5 => NULL, )
Output for 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 - 7.4.33
Notice: Constant false already defined in /in/JusvB on line 3 Notice: Constant null already defined in /in/JusvB on line 5 array ( 0 => true, 1 => true, 2 => false, 3 => false, 4 => NULL, 5 => NULL, )
Output for 7.3.32 - 7.3.33
array ( 0 => true, 1 => true, 2 => false, 3 => false, 4 => NULL, 5 => NULL, )
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Notice: Constant false already defined in /in/JusvB on line 3 Notice: Constant null already defined in /in/JusvB on line 5 array ( 0 => true, 1 => true, 2 => '- FALSE -', 3 => false, 4 => '- NULL -', 5 => NULL, )
preferences:
178.26 ms | 414 KiB | 5 Q