<?php
$f4 = null;
$zero = 0; // global scope
$f1 = function() use ($zero) {
$one = 1; // third-level closure scope of f4
$f2 = function() use ($zero, $one) {
$two = 2; // second-level closure scope of f4
$f3 = function() use ($zero, $one, $two) {
global $f4;
$three = 3; // first-level closure scope of f4
$f4 = function() use ($zero, $one, $two, $three) {
$four = 4; // local scope of f4
echo $zero + $one + $two + $three + $four;
};
};
};
};
var_dump($f1);
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- object(Closure)#1 (1) {
["static"]=>
array(1) {
["zero"]=>
int(0)
}
}
- 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/5C6fJ on line 4
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/5C6fJ on line 4
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/5C6fJ on line 4
Process exited with code 255.
preferences:
277.84 ms | 401 KiB | 358 Q