How to sort an entire multi dimensional array in PHP using any one of the index?

Question

How to sort an entire multi dimensional array in php based on any one of the index?

Like i have an array say $a=array('name'=>'sandep','dob'=>'06/08/1987','education'=>'undergrad'); i have data filled into this array based on the index. Now i want to sort the entire array data based on any one of the index. Say 'DOB'. Is it possible to do them in PHP?

EG: if i have thousand rows. The entire array should be a sorted one based on DOB.

possible duplicate of [PHP sort multidimensional array by value](http://stackoverflow.com/questions/2699086/php-sort-multidimensional-array-by-value) and http://stackoverflow.com/search?q=%5Bphp%5D+sort+multidimensional — JJJ, Oct 22 '11 at 17:50

score 0 · Answer 1 · answered Oct 22 '11 at 17:51

0

Yes, you can use usort to use your own sort function.

answered Oct 22 '11 at 17:51

xdazz

158,678
38
247
274

score 0 · Answer 2 · answered Oct 22 '11 at 17:52

<?php 
$multiArray = Array( 
    Array("id" => 1, "name" => "Defg"), 
    Array("id" => 2, "name" => "Abcd"), 
    Array("id" => 3, "name" => "Bcde"), 
    Array("id" => 4, "name" => "Cdef")); 
$tmp = Array(); 
foreach($multiArray as &$ma) 
    $tmp[] = &$ma["name"]; 
array_multisort($tmp, $multiArray); 
foreach($multiArray as &$ma) 
    echo $ma["name"]."<br/>"; 

/* Outputs 
    Abcd 
    Bcde 
    Cdef 
    Defg 
*/ 
?>

How to sort an entire multi dimensional array in PHP using any one of the index?

2 Answers2