PHP sizeof() Function

Definition and Usage

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

Syntax

sizeof(array,mode);

Parameter	Description
array	Required. Specifies the array
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)

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

 OUTPUT :
3