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PHP Basic

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PHP Data Types

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PHP Advanced

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MySQL Database

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PHP Reference

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Text lesson

asort()

Example

Sort an associative array in ascending order based on the values.

<?php
$age=array(“Peter”=>“35”,“Ben”=>“37”,“Joe”=>“43”);
asort($age);
?>

Definition and Usage

The asort() function sorts an associative array in ascending order by value.

Tip: Use the arsort() function to sort an associative array in descending order by value.

Tip: Use the ksort() function to sort an associative array in ascending order by key.

Syntax

asort(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+