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run code in 150+ php & hhvm versions
Bugs & Features
<?php namespace Foo\Bar; define('\\Foo\\Bar\\true', 'I AM REDEFINED', true); define('\\Foo\\Bar\\false', 'I AM REDEFINED'); define('\\Foo\\Bar\\null', 'I AM REDEFINED'); var_dump('true:', true, constant('\\Foo\\Bar\\true')); var_dump('false:', false, constant('\\Foo\\Bar\\false')); var_dump('null:', null, constant('\\Foo\\Bar\\null'));
Output for 5.3.0 - 7.1.0
Warning: constant(): Couldn't find constant \Foo\Bar\true in /in/K32Yp on line 8 string(5) "true:" bool(true) NULL Warning: constant(): Couldn't find constant \Foo\Bar\false in /in/K32Yp on line 9 string(6) "false:" bool(false) NULL Warning: constant(): Couldn't find constant \Foo\Bar\null in /in/K32Yp on line 10 string(5) "null:" NULL NULL
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/K32Yp on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/K32Yp on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/K32Yp on line 2
Process exited with code 255.