PHP ksort() Function

❮ PHP Array Reference

Example

Sort an associative array in ascending order, according to the key:

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
ksort($age);
?>
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Definition and Usage

The ksort() function sorts an associative array in ascending order, according to the key.

Tip: Use the krsort() function to sort an associative array in descending order, according to the key.

Tip: Use the asort() function to sort an associative array in ascending order, according to the value.

Syntax

ksort(array, sorttype)

Parameter Values

Parameter Description
array Required. Specifies the array to sort
sorttype Optional. Specifies how to compare the array elements/items. Possible values:
  • 0 = SORT_REGULAR - Default. Compare items normally (don't change types)
  • 1 = SORT_NUMERIC - Compare items numerically
  • 2 = SORT_STRING - Compare items as strings
  • 3 = SORT_LOCALE_STRING - Compare items as strings, based on current locale
  • 4 = SORT_NATURAL - Compare items as strings using natural ordering
  • 5 = SORT_FLAG_CASE -

Technical Details

Return Value: TRUE on success. FALSE on failure
PHP Version: 4+
❮ PHP Array Reference
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