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run code in 200+ php & hhvm versions
Bugs & Features
<?php function findElementR(&$array, $id) { foreach($array AS &$v){ if($v['id'] == $id){ $v['children'] = []; return $v; } if(!empty($v['children'])){ $_n = findElementR($_n['children'], $id); if(!empty($_n)) return $_n; } } } $ar = [['parentId'=>3,'id'=>1],['parentId'=>3,'id'=>2]]; $n= findElementR($ar,1); print_r($n); $n['children'] = []; print_r($ar);
based on fqWJp
Output for 5.4.0 - 7.2.0
Array ( [parentId] => 3 [id] => 1 [children] => Array ( ) ) Array ( [0] => Array ( [parentId] => 3 [id] => 1 [children] => Array ( ) ) [1] => Array ( [parentId] => 3 [id] => 2 ) )
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/umaG2 on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/umaG2 on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/umaG2 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/umaG2 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/umaG2 on line 4
Process exited with code 255.