数组针对某项的求和问题
已知数组a:
<br />
array (<br />
0 => <br />
array (<br />
'stock_no' => 'SU13080800340',<br />
'adress' => 'B',<br />
'arr_time' => '2013-08-14 09:00:00',<br />
'c_type' => 'P32E',<br />
'cust_no' => '310F61VA5A',<br />
'mount_total' => '1',<br />
'total' => '16',<br />
'c1_time' => '2013-08-10 15:00:00',<br />
'packageno' => 'CVT121015001',<br />
),<br />
1 => <br />
array (<br />
'stock_no' => 'SU13080800340',<br />
'adress' => 'B',<br />
'arr_time' => '2013-08-14 09:00:00',<br />
'c_type' => 'P32E',<br />
'cust_no' => '310F61VA5B',<br />
'mount_total' => '2',<br />
'total' => '32',<br />
'c1_time' => '2013-08-10 15:00:00',<br />
'packageno' => 'CVT121015002',<br />
),<br />
2 => <br />
array (<br />
'stock_no' => 'SU13080800340',<br />
'adress' => 'B',<br />
'arr_time' => '2013-08-14 09:00:00',<br />
'c_type' => 'P32E',<br />
'cust_no' => '310F61VA5B',<br />
'mount_total' => '2',<br />
'total' => '32',<br />
'c1_time' => '2013-08-10 15:00:00',<br />
'packageno' => 'CVT121226001',<br />
),<br />
)<br />
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