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<?php $array1 = array( 'shopify_product_id' => "369708720", 'shopify_item_id' => "957453564", 'sku' => "SBXX001" ); $array2 = array( 'shopify_product_id' => "218014361", 'shopify_item_id' => "490326013", 'sku' => "ATTXLL001" ); $diff = array_diff($array1, $array2); var_dump($diff);

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