Rumah >pembangunan bahagian belakang >tutorial php >php foreach循环判断在改变值。坐等大神解决
<code> foreach ($gjtc as $key=>$val) { foreach ($gjtc2 as $key2=>$vals2) { if($key['order_id']==$key2['order_id']) { } } } </code>
写到这里不会写了,我要把2数组sp_tc相加根据1组的ID
<code> foreach ($gjtc as $key=>$val) { foreach ($gjtc2 as $key2=>$vals2) { if($key['order_id']==$key2['order_id']) { } } } </code>
写到这里不会写了,我要把2数组sp_tc相加根据1组的ID
直接用sql语句操作就好了,为什么还要php写循环去操作呢?