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run code in 150+ php & hhvm versions
Bugs & Features
<?php namespace foo; use function bar\strlen; strlen("Foo");
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function bar\strlen() in /in/Qt30G:6 Stack trace: #0 {main} thrown in /in/Qt30G on line 6
Process exited with code 255.
Output for hhvm-3.12.0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.6.7 - 5.6.28
Fatal error: Call to undefined function bar\strlen() in /in/Qt30G on line 6
Process exited with code 255.
Output for 5.4.0 - 5.5.35
Parse error: syntax error, unexpected 'function' (T_FUNCTION), expecting identifier (T_STRING) or \\ (T_NS_SEPARATOR) in /in/Qt30G on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_FUNCTION, expecting T_STRING or T_NS_SEPARATOR in /in/Qt30G on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/Qt30G 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/Qt30G on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Qt30G on line 2
Process exited with code 255.