php 二维数组排序与遍历
关于php二维数组定义我就不说多了,很简单的,下面几款实例都是讲关于php 二维数组排序与遍历哦,我们每个实例都是以不同的方法介绍php 二维数组排序。
关于php教程二维数组定义我就不说多了,很简单的,下面几款实例都是讲关于php 二维数组排序与遍历哦,我们每个实例都是以不同的方法介绍php 二维数组排序。
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本身是有一个多维数组排序的函数的。
bool array_multisort ( array $ar1 [, mixed $arg [, mixed $... [, array $... ]]] )
方法二
//以时间inputdate为key值进行二维数组降序排列
function array_sort($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($keysvalue); //指针重新指向数组第一个
foreach($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; $ii$new_array[] = $arr[$keysort[$ii]]; ($keysort);>
}
}
return $new_array;
}
?>
方法三
$a = array(
0=>array("id"=>1,"name"=>"小何","addr"=>"0:1"),
1=>array("id"=>2,"name"=>"小刚","addr"=>"0:1:2"),
2=>array("id"=>3,"name"=>"小军","addr"=>"0:1:3"),
3=>array("id"=>4,"name"=>"公司","addr"=>"0:4"),
);
function sort_by($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"]);
?>

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