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<?php $array1 = array ( 'productcode' => 218133, 'categoryid' => 315, 'color' => 'red' ); $array2 = array (10,220); $array1['categoryid'] = array_merge((array)$array1['categoryid'], $array2); print_r($array1);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [productcode] => 218133 [categoryid] => Array ( [0] => 315 [1] => 10 [2] => 220 ) [color] => red )

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