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run code in 150+ php & hhvm versions
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<?php $outer = function () { echo "Outer<br>"; $times = 0; $inner = function() use ($times){ echo "Inner : ${times}<br>"; if ( $times <= 2 ){ inner(); $times++; } }; return $inner; }; $inner = $outer(); $inner(); ?>
Output for 7.0.0 - 7.1.0
Outer<br>Inner : 0<br> Fatal error: Uncaught Error: Call to undefined function inner() in /in/DiW04:9 Stack trace: #0 /in/DiW04(19): {closure}() #1 {main} thrown in /in/DiW04 on line 9
Process exited with code 255.
Output for hhvm-3.12.0
Outer<br>Inner : 0<br> Fatal error: Uncaught Error: Call to undefined function inner() in /in/DiW04:9 Stack trace: #0 /in/DiW04(19): Closure$() #1 {main}
Process exited with code 255.
Output for 5.3.0 - 5.6.28, hhvm-3.10.0
Outer<br>Inner : 0<br> Fatal error: Call to undefined function inner() in /in/DiW04 on line 9
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_FUNCTION in /in/DiW04 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_FUNCTION in /in/DiW04 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/DiW04 on line 2
Process exited with code 255.