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    PHP arsort() Function

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    Definition and Usage

    • The arsort() function sorts an associative array in descending order, according to the value.
    • Tip: Use the asort() function to sort an associative array in ascending order, according to the value.
    • Tip: Use the krsort() function to sort an associative array in descending order, according to the key.

    Syntax

    arsort(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+
    Example: PHP arsort() Function

    Sort an associative array in descending order, according to the value:

    <?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
arsort($age);
?>

    PHP Fundamentals course home
    PHP Referrence: The PHP reference contains different categories of all PHP functions, keywords and constants, along with examples.

    Navigate this PHP reference guide
  • array() Function
  • array_change_key_case() Function
  • array_chunk() Function
  • array_combine() Function
  • array_count_values() Function
  • arsort() Function
  • asort() Function
  • count() Function
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    PHP Quiz

    Example files created in this segment:
    Indexed Arrays Associative Arrays Loop Through an Indexed Array Loop Through an Associative Array Two-dimensional Array Change all keys in an array to lowercase Special rules for changing key case PHP Array - array_chunk() Function part 1 PHP Array - array_chunk() Function part 2 PHP array_combine() Function PHP array_count_values() Function PHP arsort() Function PHP asort() Function PHP count() Function part 1 count() Function part 2