How to use php count function

php The count function is used to return the number of elements in an array. Its syntax is count(array,mode). The parameter array is required and refers to the array to be counted.

#How to use the php count function?

Definition and usage

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

Syntax

count(array,mode);

Parameters

array Required. Specifies the array to count.

mode Optional. Specifies the mode of the function. Possible values:

0 - Default. Not counting all elements in a multidimensional array.

1 - Recursively count the number of elements in an array (count all elements in a multidimensional array).

Return value: Returns the number of elements in the array.

PHP version: 4

Change log: The mode parameter is new in PHP 4.2.

Example 1

Recursively count the number of elements in an 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);
?>

Output:

Normal count: 3
Recursive count: 8

Example 2

Return the number of elements in the array:

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

Output:

3

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