Online PHP editor | refs for gGfDI

<?php class Arr { public static function flatten( $array ) { $flat = array(); foreach ( $array as $key => $value ) { if ( is_array( $value ) ) { $flat += Arr::flatten( $value ); } else { $flat[ $key ] = $value; } } return $flat; } } $sample = array( 'pictures' => array( 'name' => array( 1 => array( 1 => 'Chrysanthemum.jpg', 2 => 'Desert.jpg', ), 2 => array( 1 => '', ), 3 => array( 1 => '', 2 => 'Hydrangeas.jpg', ), ), 'type' => array( 1 => array( 1 => 'image/jpeg', 2 => 'image/jpeg', ), 2 => array( 1 => '', ), 3 => array( 1 => '', 2 => 'image/jpeg', ), ), 'tmp_name' => array( 1 => array( 1 => '/tmp/phpOhzhBd', 2 => '/tmp/phpzFrNjP', ), 2 => array( 1 => '', ), 3 => array( 1 => '', 2 => '/tmp/phpR6hO2q', ), ), 'error' => array( 1 => array( 1 => 0, 2 => 0, ), 2 => array( 1 => 4, ), 3 => array( 1 => 4, 2 => 0, ), ), 'size' => array( 1 => array( 1 => 879394, 2 => 845941, ), 2 => array( 1 => 0, ), 3 => array( 1 => 0, 2 => 595284, ), ), ) ); echo '<pre>'; var_dump( $sample ); echo '</pre>'; echo '<pre>'; var_dump( Arr::flatten( $sample ) ); echo '</pre>';