PHP Tutorial - PHP sizeof() Function
Definition
The sizeof() function returns the number of elements in an array.
The sizeof() function is an alias of the count() function.
Syntax
PHP sizeof() Function has the following syntax.
sizeof(array,mode);Parameter
| Parameter | Is Required | Description |
|---|---|---|
| array | Required. | Specifies the array |
| mode | Optional. | Specifies the mode. |
Possible values for model:
| Value | Description |
|---|---|
| 0 | Default. Does not count all elements from multidimensional arrays |
| 1 | Counts the array recursively for all the elements of multidimensional arrays |
Example 1
<?php
$cars=array("A","B","C");
echo sizeof($cars);
?>
The code above generates the following result.
Example 2
Count the array recursively:
<?php
$cars=array("A"=>array("A1","A2"),
"B"=>array("B1","B2"),
"C"=>array("C1")
);
echo "Normal count: " . sizeof($cars)."\n";
echo "Recursive count: " . sizeof($cars,1);
?>
The code above generates the following result.
