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1，在一维数组中有多组数组对象时的排序案例
"data": [{
"id": "60",
"h_f_id": "10",
"latitude": "30.257360",
"longitude": "120.201750",
"h_f_name": "医院",
"distance": ">100Km",
"distancenum": 1061670.7
}, {
"id": "61",
"h_f_id": "10",
"latitude": "30.300090",
"longitude": "120.316170",
"h_f_name": "医院",
"distance": ">100Km",
"distancenum": 1072167.1
}, {
"id": "62",
"h_f_id": "10",
"latitude": "30.284420",
"longitude": "120.167820",
"h_f_name": "医院",
"distance": ">100Km",
"distancenum": 1062063.6
}, {
"id": "63",
"h_f_id": "10",
"latitude": "30.148760",
"longitude": "120.068820",
"h_f_name": "医院",
"distance": ">100Km",
"distancenum": 1044317.1
}]需求：我需要以distancenum(距离)为标准来进行重新对整个数组进行排序。也就是以数组中的一条记录值进行整个数据组的排序
处理方法：以上数据假设是$result中的数据
$flag = array();
foreach ($result as $v) {
$flag[] = $v['distancenum'];
}
array_multisort($flag, SORT_ASC, $result);