<?php $a = array( '123' => array(1) ); $b = array( '123' => array(2, 3) ); foreach ($b as $k => $v) { $a[$k] = array_merge($a[$k] ?? [], $v); } var_export($a);
You have javascript disabled. You will not be able to edit any code.
Value for `_results` contains invalid data `array`