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<?php $array = array( array( 'category_id' => 1, 'children' => array( 'category_id' => 2, 'children' => array( 'category_id' => 3, ) ) ), array( 'category_id' => 4, 'children' => array( 'category_id' => 5, 'children' => array( 'category_id' => 6, ) ) ) ); $iterator = new RecursiveIteratorIterator( new RecursiveArrayIterator($array) ); for($iterator; $iterator->valid(); $iterator->next()) { printf( "Key: %s Value: %s Depth: %s\n", $iterator->key(), $iterator->current(), $iterator->getDepth() ); }
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Array to string conversion in /in/u5ZPM on line 29 Key: 0 Value: Array Depth: 0 Key: category_id Value: 1 Depth: 1 Key: category_id Value: 2 Depth: 2 Key: category_id Value: 3 Depth: 3 Key: category_id Value: 4 Depth: 1 Key: category_id Value: 5 Depth: 2 Key: category_id Value: 6 Depth: 3

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