<?php $array = array( array("title" => 1, "children" => array( array( "selected" => true, "key" => 100, "children" => array() ) ), array( "selected" => true, "key" => 500, "children" => array() ), array( "selected" => true, "key" => 200, "children" => array( array( "selected" => true, "key" => 300, "children" => array( array( "selected" => true, "key" => 400, "children" => array() ) ) ) ) ) ) ); $selectedValues = array(); $iterator = new \RecursiveIteratorIterator(new \RecursiveArrayIterator($array)); foreach ($iterator as $key => $value) { if ($key == "key") { echo $value .PHP_EOL; var_dump($iterator->callGetChildren()); } } /* $selectedValues = array(); $iterator = new \RecursiveIteratorIterator(new \RecursiveArrayIterator($array)); foreach ($iterator as $key => $value) { if ($key == "selected") { $depth = $iterator->getDepth(); $subIterator = $iterator->getSubIterator($depth); foreach ($subIterator as $key2 => $value2) { if ($key2 == "key") { echo $value2 . PHP_EOL; } } } } */
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