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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(); var_dump( $inner ); $inner(); ?>
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Using ${var} in strings is deprecated, use {$var} instead in /in/bstuR on line 7 Outer<br>object(Closure)#2 (1) { ["static"]=> array(1) { ["times"]=> int(0) } } Inner : 0<br> Fatal error: Uncaught Error: Call to undefined function inner() in /in/bstuR:9 Stack trace: #0 /in/bstuR(20): {closure}() #1 {main} thrown in /in/bstuR on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27
Outer<br>object(Closure)#2 (1) { ["static"]=> array(1) { ["times"]=> int(0) } } Inner : 0<br> Fatal error: Uncaught Error: Call to undefined function inner() in /in/bstuR:9 Stack trace: #0 /in/bstuR(20): {closure}() #1 {main} thrown in /in/bstuR on line 9
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Outer<br>object(Closure)#2 (1) { ["static"]=> array(1) { ["times"]=> int(0) } } Inner : 0<br> Fatal error: Call to undefined function inner() in /in/bstuR on line 9
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_FUNCTION in /in/bstuR on line 2
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_FUNCTION in /in/bstuR on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/bstuR on line 2
Process exited with code 255.

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