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run code in 150+ php & hhvm versions
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<?php namespace { define('\\true', 1!==1); define('\\false', 1===1); var_dump(array( 'true' => true, 'false' => false, '1===1' => 1===1, '1!==1' => 1!==1, )); } namespace Foo { var_dump(array( 'true' => true, 'false' => false, '1===1' => 1===1, '1!==1' => 1!==1, )); }
Output for 5.3.0 - 7.1.0
array(4) { ["true"]=> bool(true) ["false"]=> bool(false) ["1===1"]=> bool(true) ["1!==1"]=> bool(false) } array(4) { ["true"]=> bool(true) ["false"]=> bool(false) ["1===1"]=> bool(true) ["1!==1"]=> bool(false) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected '{' in /in/hMe8L on line 3
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 '{' in /in/hMe8L on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/hMe8L on line 3
Process exited with code 255.