3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array ( 'item1' => array ( 'myValues' => array ( 1 => 5, 2 => 1, ), ), 'item2' => array ( 'myValues' => array ( 1 => 5, 2 => 1, ), ), ); $array2 = array ( 'item1' => array ( 1 => 2, ), 'item2' => array ( 1 => 5, 2 => 1, ), ); foreach ($array2 as $key => $subarray) { $array1[$key]['myValues2'] = $subarray; } var_export($array1);
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array ( 'item1' => array ( 'myValues' => array ( 1 => 5, 2 => 1, ), 'myValues2' => array ( 1 => 2, ), ), 'item2' => array ( 'myValues' => array ( 1 => 5, 2 => 1, ), 'myValues2' => array ( 1 => 5, 2 => 1, ), ), )

preferences:
156.53 ms | 403 KiB | 173 Q