Sort Functions For Arrays Using PHP ?

The array function used for arrangement of elements in ascending ,descending (lower to higher) and  alphabetical or numerical order. In the Php has several functions are used for sorting the array.

There are many sorting methods in PHP are followings.

sort() :- Sort function  is used for arrangement of array in ascending order. Example :-

<?php $name = array("Rahul", "Mukesh", "Sonu"); sort($name); $nlength = count($name); for($x = 0; $x <  $nlength; $x++) {  echo $name[$x] ."<br>" ;  } ?>

Output:-   

Mukesh Rahul Sonu

rsort() :- Rsort function is used for arrangement of array in descending order

Example :-

<?php $name = array("Rahul", "Mukesh", "Sonu"); rsort($name); $nlength = count($name); for($x = 0; $x <  $nlength; $x++) { echo $name[$x] . "<br>" ; } ?>

Output:-

Sonu Rahul Mukesh

asort() :- Asort function  is used for sorting the array in ascending order and maintain the index of each array.

Example :-

<?php$colors = array("b" => "red", "c" => "orange", "a" => "blue", "d" => "green"); asort($colors); foreach ($colors as $key => $col) { echo "$key = $col \n"; } ?> Output :- a = blue d = green c = orange b = red

ksort() :- Ksort function is used for sorting the array in ascending order according to   key  of  the element. Example :-  

<?php $colors = array("b" => "red", "c" => "orange", "a" => "blue", "d" => "green"); ksort($colors); foreach ($colors as $key => $col) { echo "$key = $col \n"; } ?> Output :-

a = blue b = red c = orange d = green

arsort() :-  Arsort  function  is used for sorting the array in descending order and according to value of array elements. Example :- <?php $colors = array("b" => "red", "c" => "orange", "a" => "blue", "d" => "green"); arsort($colors); foreach ($colors as $key => $col) { echo "$key = $col \n"; } ?> Output :- b = red c = orange d = green a = blue

krsort() :-  Krsort  function  is used for sorting the array in descending order and  according to key  of array elements. Example :- <?php

$colors = array("b" => "red", "c" => "orange", "a" => "blue", "d" => "green"); krsort($colors); foreach ($colors as $key => $col) { echo "$key = $col \n"; } ?> Output :-d = green c = orange b = red a = blue