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    PHP count() Function

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    Definition and Usage

    The count() function returns the number of elements in an array.

    Syntax

    count(array, mode)

    Parameter Values

    Parameter Description
    array Required. Specifies the array to sort
    mode Optional. Specifies the mode. Possible values:
    • 0 - Default. Does not count all elements of multidimensional arrays
    • 1 - Counts the array recursively (counts all the elements of multidimensional arrays)

    Technical Details

    Return Value: Returns the number of elements in the array
    PHP Version: 4+
    PHP Changelog: The mode parameter was added in PHP 4.2

    Examples

    Example 1: PHP count() Function part 1

    Return the number of elements in an array:

    <?php
$cars=array("Volvo","BMW","Toyota");
echo count($cars);
?>
    Example 2: count() Function part 2

    Count the array recursively:

    <?php
$cars=array
  (
  "Volvo"=>array
  (
  "XC60",
  "XC90"
  ),
  "BMW"=>array
  (
  "X3",
  "X5"
  ),
  "Toyota"=>array
  (
  "Highlander"
  )
  );

echo "Normal count: " . count($cars)."<br>";
echo "Recursive count: " . count($cars,1);
?>

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    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