<code>array(4) {
[0] => array(7) {
["goodsId"] => string(2) "15"
["goodsNo"] => string(13) "9311770592581"
["goodsName"] => string(37) "DCS超级水润泡沫洗面/洁面乳"
["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超级营养精华"
["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超级营养水"
["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"
}
}</code>把数组里的goodsid重复的商品信息合成一个，个数为quantity的总和（同样商品总和）
结果应为：
<code>array(4) {
[0] => array(7) {
["goodsId"] => string(2) "15"
["goodsNo"] => string(13) "9311770592581"
["goodsName"] => string(37) "DCS超级水润泡沫洗面/洁面乳"
["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超级营养精华"
["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超级营养水"
["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"
}
}</code><code>array(4) {
[0] => array(7) {
["goodsId"] => string(2) "15"
["goodsNo"] => string(13) "9311770592581"
["goodsName"] => string(37) "DCS超级水润泡沫洗面/洁面乳"
["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超级营养精华"
["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超级营养水"
["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"
}
}</code>把数组里的goodsid重复的商品信息合成一个，个数为quantity的总和（同样商品总和）
结果应为：
<code>array(4) {
[0] => array(7) {
["goodsId"] => string(2) "15"
["goodsNo"] => string(13) "9311770592581"
["goodsName"] => string(37) "DCS超级水润泡沫洗面/洁面乳"
["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超级营养精华"
["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超级营养水"
["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"
}
}</code>
废话不多说，直接上代码吧：
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<code>$arr = array(
'0' => array(
'id' => 1,
'count' =>1,
),
'1' => array(
'id' => 2,
'count' =>1,
),
'2' => array(
'id' => 4,
'count' =>1,
),
'3' => array(
'id' => 2,
'count' =>1,
),
);
$new = $news = $newss = array();
foreach ($arr as $key => $value) {
if(!in_array($value['id'], $new)) {
$new[] = $value['id']; //$new保存不重复的id值
$news[$key] = $value; //$news保存不重复id的数组值
$newss[$value['id']] = $key; //$newss保存不重复的id的键值
}else {
$k = $newss[$value['id']]; //取出重复的id保存的第一个键值
$count = (int)$news[$k]['count']; //取出第一个相同id保存的count值
$news[$k]['count'] = $count+1; //赋值到新的数组
}
}
var_dump($news);</code>
说一个思路吧，用一个字典
因为goodsId是唯一的， 所以k是goodsId
遍历数组，如果字典里有goodsId则加上对应的数值，没有则把对应的数据放到字典里
二维数组去重，看看这个是否你想要个结果：http://zhidao.baidu.com/link?...
这些数据是从数据库里面查出来的么，如果是那么要去重可以依赖sql查询去重，如果是后来merge的可以找找PHP版的迭代器类，操作可以简单一点，但这样始终免不了遍历数组的。
这是一个二维数组的去重问题吗？如果是的话，我找找以前的代码，曾经写过这样一个函数。
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