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<?php $list = array( array( 'order_cart_id' => 1, ), array( 'order_cart_id' => 2, ), array( 'order_cart_id' => 3, ), array( 'order_cart_id' => 4, ), ); $carts = array(); foreach($list as $i => $item) { if(!empty($item['order_cart_id'])) { $carts[] = $item['order_cart_id']; } }
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