这里的URl怎么取到数组里的值啊 求大神帮帮忙啊？？？？？？急

Question

$sql="select * from hc_shipping where shipping_name='".$value['shipping_name']."'";
$wuliu=$db->getrow($sql);
$kuaidi=$wuliu['shipping_code'];
$kuaidi=array
(
'zjs' => 'zhaijisong',
'zto' => 'zhongtong',
'ems' => 'ems',
'sto_express' => 'shentong',
'sf_express' => 'shunfeng',
'yto' => 'yuantong',
'zto_tea' => 'zhongtong',
'lbex' => 'longbang',
'zjs_ncod' => 'zhaijisong',
'sf_express_four_days' => 'shunfeng',
'zjs_anxi' => 'shunfeng',
'ems_anxi' => 'ems',
'sf_express_anxi' => 'shunfeng',
'zto_tea_anxi' => 'zhongtong',
'sf_express_four_days_anxi' => 'shunfeng',
'ydo' => 'yunda',
'e_you' => 'pingyou',
'e_you_jingkuai' => 'pingyou',
'e_you_anxi' => 'pingyou',
)