<?php function unique_multidim_array($array, $key) { $temp_array = array(); $i = 0; $key_array = array(); foreach($array as $val) { if (!in_array($val[$key], $key_array)) { $key_array[$i] = $val[$key]; $temp_array[$i] = $val; } $i++; } return $temp_array; } $content = [ [ "id" => 15710, "sale_id" => 6699, "item_id" => 300 ], [ "id" => 15711, "sale_id" => 6699, "item_id" => 300 ] ]; print_r(unique_multidim_array($content,'item_id')); ?>
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