array(4) { [0] => array(7) { ["goodsId"] => string(2) "15" ["goodsNo"] => string(13) "9311770592581" ["goodsName"] =&<愛尬聊_百科>gt; string(37) "DCS超級水潤泡沫洗面/潔面乳" ["price"] => string(5) "40.00" ["currency"] => string(2) "15" ["quantity"] => int(1) ["goods_tax_price"] => string(1) "0" } [1] => array(7) { ["goodsId"] => string(2) "16" ["goodsNo"] => string(13) "9327693000805" ["goodsName"] => string(21) "DCS超級營養精華" ["price"] => string(5) "10.00" ["currency"] => string(2) "15" ["quantity"] => string(1) "1" ["goods_tax_price"] => string(1) "0" } [2] => array(7) { ["goodsId"] => string(2) "17" ["goodsNo"] => string(13) "9327693000744" ["goodsName"] => string(18) "DCS超級營養水" ["price"] => string(5) "30.00" ["currency"] => string(2) "15" ["quantity"] => string(1) "1" ["goods_tax_price"] => string(1) "0" } [3] => array(7) { ["goodsId"] => string(2) "18" ["goodsNo"] => string(13) "9311770592505" ["goodsName"] => string(27) "DCS集中美白活力面膜" ["price"] => string(5) "40.00" ["currency"] => string(2) "15" ["quantity"] => string(1) "1" ["goods_tax_price"] => string(1) "0" } [4] => array(7) { ["goodsId"] => string(2) "18" ["goodsNo"] => string(13) "9311770592505" ["goodsName"] => string(27) "DCS集中美白活力面膜" ["price"] => string(5) "40.00" ["currency"] => string(2) "15" ["quantity"] => string(1) "2" ["goods_tax_price"] => string(1) "0" } }

把數組里的goodsId重復的商品信息合成一個，個數為quantity的總和（同樣商品總和）

結果應為：

array(4) { [0] => array(7) { ["goodsId"] => string(2) "15" ["goodsNo"] => string(13) "9311770592581" ["goodsName"] => string(37) "DCS超級水潤泡沫洗面/潔面乳" ["price"] => string(5) "40.00" ["currency"] => string(2) "15" ["quantity"] => int(1) ["goods_tax_price"] => string(1) "0" } [1] => array(7) { ["goodsId"] => string(2) "16" ["goodsNo"] => string(13) "9327693000805" ["goodsName"] => string(21) "DCS超級營養精華" ["price"] => string(5) "10.00" ["currency"] => string(2) "15" ["quantity"] => string(1) "1" ["goods_tax_price"] => string(1) "0" } [2] => array(7) { ["goodsId"] => string(2) "17" ["goodsNo"] => string(13) "9327693000744" ["goodsName"] => string(18) "DCS超級營養水" ["price"] => string(5) "30.00" ["currency"] => string(2) "15" ["quantity"] => string(1) "1" ["goods_tax_price"] => string(1) "0" } [3] => array(7) { ["goodsId"] => string(2) "18" ["goodsNo"] => string(13) "9311770592505" ["goodsName"] => string(27) "DCS集中美白活力面膜" ["price"] => string(5) "40.00" ["currency"] => string(2) "15" ["quantity"] => string(1) "3" ["goods_tax_price"] => string(1) "0" }}

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xymm敏敏 12小時前

二維數組去重，看看這個是否你想要個結果：http://zhidao.baidu.com/link?...

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asrwetwtw 12小時前

說一個思路吧，用一個字典因為goodsId是唯一的， 所以k是goodsId遍歷數組，如果字典里有goodsId則加上對應的數值，沒有則把對應的數據放到字典里

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