3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo { const namespace\TRUE = 0; const namespace\true = 0; var_dump(true, TRUE); var_dump(namespace\true, namespace\TRUE); var_dump(\true, \TRUE); }
Output for 5.4.0 - 5.4.34
Parse error: syntax error, unexpected 'namespace' (T_NAMESPACE), expecting identifier (T_STRING) in /in/LfXr3 on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_NAMESPACE, expecting T_STRING in /in/LfXr3 on line 4
Process exited with code 255.
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/LfXr3 on line 3
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/LfXr3 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/LfXr3 on line 3
Process exited with code 255.
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