PHP two-dimensional array sorting and traversal_PHP tutorial

I won’t say much about the definition of two-dimensional arrays in PHP. It’s very simple. The following examples are all about PHP two-dimensional array sorting and traversal. Each of our examples introduces PHP two-dimensional array sorting in a different way. . ​

I won’t say much about the definition of two-dimensional arrays in the PHP tutorial. It’s very simple. The following examples are all about php two-dimensional array sorting and traversal. Each of our examples is Introducing PHP two-dimensional array sorting in different ways.

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];
                                                                                               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 itself has a function for sorting multi-dimensional arrays.

bool array_multisort ( array $ar1 [, mixed $arg [, mixed $... [, array $... ]]] )

Method 2

//Use the time inputdate as the key value to sort the two-dimensional array in descending order

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 value sorting

reset($keysvalue); //Redirect the pointer to the first

in the array 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]];
}
} return $new_array;
}
?>


($keysort);>Method 3

    $a = array(
       0=>array("id"=>1,"name"=>"小何","addr"=>"0:1"),
       1=>array("id"=>2,"name"=>"小刚","addr"=>"0:1:2"),
       2=>array("id"=>3,"name"=>"小军","addr"=>"0:1:3"),
       3=>array("id"=>4,"name"=>"公司","addr"=>"0:4"),
    );
function sort_by($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"]);
?>

http://www.bkjia.com/PHPjc/445421.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/445421.htmlTechArticle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...