php基础篇-二维数组排序 array_multisort

function my_sort($arrays,$sort_key,$sort_order=SORT_ASC,$sort_type=SORT_NUMERIC ){
if(is_array($arrays)){
foreach ($arrays as $array){
if(is_array($array)){
$key_arrays[] = $array[$sort_key];
}else{
return false;
}
}
}else{
return false;
}
array_multisort($key_arrays,$sort_order,$sort_type,$arrays);
return $arrays;
}

$person =  array(
array('id'=>1,'name'=>'fj','weight'=>100,'height'=>180),
array('id'=>2,'name'=>'tom','weight'=>53,'height'=>150),
array('id'=>3,'name'=>'jerry','weight'=>120,'height'=>156),
array('id'=>4,'name'=>'bill','weight'=>110,'height'=>190),
array('id'=>5,'name'=>'linken','weight'=>80,'height'=>200),
array('id'=>6,'name'=>'madana','weight'=>95,'height'=>110),
array('id'=>7,'name'=>'jordan','weight'=>70,'height'=>170)
);

var_dump($person);

$person = my_sort($person,'name',SORT_ASC,SORT_STRING);