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run code in 150+ php & hhvm versions
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<?php namespace MyProject const con='p'; $classname=namespace\con; function get($classname) { $a = __NAMESPACE__ . '\\' . $classname; return new $a; echo $a; } ?>
Output for 5.4.0 - 5.4.19
Parse error: syntax error, unexpected 'const' (T_CONST), expecting \\ (T_NS_SEPARATOR) or ';' or '{' in /in/0MglM on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_CONST, expecting T_NS_SEPARATOR or ';' or '{' in /in/0MglM on line 3
Process exited with code 255.