3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = array('element1' => array('subelement1'=>'value','subelement2'=>array('sub21'=>'hello')), 'element2'=>array('something'=>'this','subelement1'=>'awesome','subelement2'=>array('sub21'=>'world'))); function deepReplace($searchPath, $newValue, &$array) { if (count($searchPath) == 0) { $array = $newValue; } $lookFor = array_shift($searchPath); if ($lookFor === null) { var_dump($searchpath); foreach ($array as $value) { deepReplace($searchPath, $newValue, $value); } } else if (is_array($array) && array_key_exists($lookFor, $array)) { deepReplace($searchPath, $newValue, $array[$lookFor]); } } print_r($data); deepReplace(array(null, "subelement1"), "newValue", $data); print_r($data);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) ) Warning: Undefined variable $searchpath in /in/KoQVK on line 13 NULL Warning: Undefined variable $searchpath in /in/KoQVK on line 13 NULL Warning: foreach() argument must be of type array|object, string given in /in/KoQVK on line 14 Warning: Undefined variable $searchpath in /in/KoQVK on line 13 NULL Warning: foreach() argument must be of type array|object, string given in /in/KoQVK on line 14 Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) )
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) ) Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Warning: Invalid argument supplied for foreach() in /in/KoQVK on line 14 Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Warning: Invalid argument supplied for foreach() in /in/KoQVK on line 14 Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) )
Output for 7.3.32 - 7.3.33
Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) ) NULL NULL Warning: Invalid argument supplied for foreach() in /in/KoQVK on line 14 NULL Warning: Invalid argument supplied for foreach() in /in/KoQVK on line 14 Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) )
Output for 4.3.0 - 4.3.10, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) ) Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Warning: Invalid argument supplied for foreach() in /in/KoQVK on line 14 Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Warning: Invalid argument supplied for foreach() in /in/KoQVK on line 14 Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) )
Output for 4.3.11
Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) ) Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Notice: Undefined variable: searchpath in /in/KoQVK on line 13 NULL Array ( [element1] => Array ( [subelement1] => value [subelement2] => Array ( [sub21] => hello ) ) [element2] => Array ( [something] => this [subelement1] => awesome [subelement2] => Array ( [sub21] => world ) ) )

preferences:
209.35 ms | 403 KiB | 313 Q