PHP sizeof

Education is not limited to just classrooms. It can be gained anytime, anywhere... - Ravi Ranjan (M.Tech-NIT)

PHP: sizeof() function

PHP: Count all elements in an array

The sizeof() function is used to count the elements of an array or the properties of an object. This function is an alias of count().

Version

(PHP 4 and above)

Syntax

sizeof(array_name, mode) 

Parameters

Name

Description

Required /
Optional

Type

array_name

Specifies the array or object to count.

Required

Array

mode

Sets the mode of the function.
Possible values :
COUNT_RECURSIVE (or 1) Here the count() function counts the array recursively. This is useful for counting all the elements of a multidimensional array.
The default value is 0.

Optional

Integer

Return value

The number of elements in array_name.

Value Type : Array.

Pictorial Presentation :

php array sizeof() function

Example :

  1. $a[0] = 'Language';  

  2. $a[1] = 'English';  

  3. $a[2] = 'Math';  

  4. $a[3] = 'Science';  

  5. $result = sizeof($a);  

  6. echo $result;  

  7. ?>  

Output :

4