1. 排序：array_multisort 可以对多位数组的多个字段进行排序
例子1如下：
//自定义数组排序--按转发数从高到低排序
function sortSelfRc($oneLayer){
$myselfSort = array(); //自定义排序数组
$i=0;
foreach($oneLayer as $k=>$layer){
$oneLayer[$i] = $layer;
unset($oneLayer[$k]);
$myselfSort[] = $layer['reposts_count'];
$i++;
}
array_multisort($myselfSort,SORT_DESC,SORT_NUMERIC,$oneLayer);
return $oneLayer;
}
例子2：
.......
$list[] = $tmpArr; //要排序的数据源
}
//用户自定义排序
//按客服 在线->离线排序
$tmp_arr = array();
foreach ($list as $key => $val) {
$tmp_arr[$key] = $val['onlineStatus'];
}
//按服务客服数量多少排序
$tmp_arr2 = array();
foreach ($list as $key => $val) {
$tmp_arr2[$key] = $val['session_num'];
}
array_multisort($tmp_arr, SORT_ASC, $tmp_arr2, SORT_DESC, $list);
例子3
foreach($frequencyArray as $key => $value) {
$frequencyList[$key] = $value['frequency'];
$valueList[$key] = $value['value'];
}
array_multisort($frequencyList, SORT_DESC, $valueList, SORT_ASC, SORT_NUMERIC, $frequencyArray);