| 代碼如下 |
複製代碼 |
function multi_array_sort($multi_array,$sort_key,$sort=sort_asc){
if(is_array($multi_array)){
foreach ($multi_array as $row_array){
if(is_array($row_array)){
$key_array[] = $row_array[$sort_key];
}else{
return -1;
}
}
}else{
return -1;
}
array_multisort($key_array,$sort,$multi_array);
return $multi_array;
} |
array(
array('id'=>1,'data'=>'a'),
array('id'=>3,'data'=>'c'),
array('id'=>2,'data'=>'b')
);
php本身是有一個多維陣列排序的函數的。
| 代碼如下 |
複製代碼 |
bool array_multisort ( array $ar1 [, mixed $arg [, mixed $... [, array $... ]]] ) |
方法二
| 代碼如下 |
複製代碼 |
<?php
//以時間inputdate為key值進行二維數組降序排列
function array_sort($arr,$keys,$type){
$keysvalue=array();
$i = 0;
foreach($arr as $key=>$val) {
$val[$keys] = str_replace("-","",$val[$keys]);
$val[$keys] = str_replace(" ","",$val[$keys]);
$val[$keys] = str_replace(":","",$val[$keys]);
$keysvalue[] =$val[$keys]; }
asort($keysvalue); //key值排序
reset($keysvalue); //指標重新指向數組第一個
foreach($keysvalue as $key=>$vals) {
$keysort[] = $key;
}
$new_array = array();
if($type != "asc"){
for($ii=count($keysort)-1; $ii>=0; $ii--) {
$new_array[] = $arr[$keysort[$ii]];
}
}else{
for($ii=0; $ii<count($keysort); $ii++){
$new_array[] = $arr[$keysort[$ii]];
}
}
return $new_array;
}
?> |
方法三
| 代碼如下 |
複製代碼 |
<?php
$a = array(
0=>array("id"=>1,"name"=>"小何","addr"=>"0:1"),
1=>array("id"=>2,"name"=>"小剛","addr"=>"0:1:2"),
2=>array("id"=>3,"name"=>"小軍","addr"=>"0:1:3"),
3=>array("id"=>4,"name"=>"公司","addr"=>"0:4"),
);
function sort_by($array, $keyname = null, $sortby){
$myarray = $inarray = array();
foreach($array as $i=>$befree){
$myarray[$i] = $array[$i][$keyname];
}
switch($sortby){
case 'asc':
asort($myarray);
break;
case 'arsort':
arsort($myarray);
break;
case 'natcasesor':
natcasesor($myarray);
break;
}
foreach($myarray as $key=>$befree){
$inarray[$key] = $array[$key];
}
return $inarray;
}
print_r(sort_by($a,"addr","arsort"));
print_r($a[2]["id"]);
?>
|
