PHP count() Function

توابع آرایه PHP

Example

Returns the number of elements in the array:

<?php
$cars=array("Volvo","BMW","Toyota");
echo count($cars);
?>

Run Instance

Definition and Usage

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

Syntax

count(array,mode);
Parameter Description
array Required. Specify the array.
mode

Optional. Specify the mode. Possible values:

  • 0 - Default. Do not count all elements in the multidimensional array
  • 1 - Recursively count the number of elements in the array (calculate all elements in the multidimensional array)

Description

The count() function calculates the number of elements in the array or the number of properties in the object.

For arrays, returns the number of elements, for other values, returns 1. If the parameter is a variable and the variable is not defined, then returns 0.

If mode If set to COUNT_RECURSIVE (or 1), it will recursively calculate the number of elements in the arrays of the multidimensional array.

Technical Details

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

More Examples

Example 1

Recursively count the array:

<?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);
?>

Run Instance

توابع آرایه PHP