/**
* 查询并去除重复二维数组(某个字段筛选)
* $data = 二维数组
* $field = 字段名称
*/
function toHeavy($data=array(),$field="name"){
$i = [];
foreach($data as $key => &$value){
if(in_array($value[$field],$i)){
unset($data[$key]);
}else{
$i = $value;
}
}
return $data;
}