PHP sizeof() function

Example

Return the number of elements in an array:

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

Definition and usage

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

The sizeof() function is an alias of the count() function.

grammar

 sizeof( array,mode );

parameter	describe
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 - Count the number of elements in an array recursively (count all elements in a multidimensional array).

technical details

Return value:	Returns the number of elements in the array.
PHP version:	4+

More examples

Example 1

Recursively count the number of elements in an array:

<?php$cars=array ( "Volvo"=>array ( "XC60", "XC90" ), "BMW"=>array ( "X3", "X5" ), "Toyota"=>array ( "Highlander" ) ); echo "Normal count: " . sizeof($cars)."<br>";echo "Recursive count: " . sizeof($cars,1);?>