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run code in 150+ php & hhvm versions
Bugs & Features
<?php $f = function ($g) use ($f) { return $g($f); }; $f($f);
Output for 7.0.0 - 7.1.0
Notice: Undefined variable: f in /in/W7utN on line 3 Fatal error: Uncaught Error: Function name must be a string in /in/W7utN:3 Stack trace: #0 /in/W7utN(3): {closure}(NULL) #1 /in/W7utN(4): {closure}(Object(Closure)) #2 {main} thrown in /in/W7utN on line 3
Process exited with code 255.
Output for 5.5.0 - 5.6.28
Notice: Undefined variable: f in /in/W7utN on line 3 Fatal error: Function name must be a string in /in/W7utN on line 3
Process exited with code 255.
Output for 5.3.0 - 5.4.45
Fatal error: Function name must be a string in /in/W7utN on line 3
Process exited with code 255.
Output for 5.2.3 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/W7utN on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_FUNCTION in <b>/in/W7utN</b> on line <b>3</b><br />
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
<br /> <b>Parse error</b>: parse error, unexpected T_FUNCTION in <b>/in/W7utN</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/W7utN</b> on line <b>3</b><br />
Process exited with code 255.