PHP ksort() function

This function is used to sort the array elements in ascending order by keys.

Syntax

ksort(array_name);

array_name is the required parameter.

Example

<?php
    $vehicle = array("7"=>"car", "4"=>"train", "5"=>"bus", "9"=>"cycle");
    ksort($vehicle);
    foreach ($vehicle as $key => $val) {
      echo $key .'='. $val.'<br/>';
   }
?>

Output -

4=train
5=bus
7=car
9=cycle

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