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<?php namespace Foo; define('true', false); define('false', true); define('Foo\\false', true); var_dump( true, false, 1 === 1, 1 === 0 );
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
Warning: Constant true already defined in /in/VmUft on line 3 Warning: Constant false already defined in /in/VmUft on line 4 bool(true) bool(false) bool(true) bool(false)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Constant true already defined in /in/VmUft on line 3 Notice: Constant false already defined in /in/VmUft on line 4 bool(true) bool(false) bool(true) bool(false)
Output for 7.3.32 - 7.3.33
bool(true) bool(false) bool(true) bool(false)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Notice: Constant true already defined in /in/VmUft on line 3 Notice: Constant false already defined in /in/VmUft on line 4 bool(true) bool(true) bool(true) bool(false)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/VmUft on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/VmUft on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/VmUft on line 2
Process exited with code 255.
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251.44 ms | 401 KiB | 355 Q