Definition
The sizeof() function count all elements in an array (alias of count() function).
Syntax
sizeof(array, mode)
Parameters
| Parameter | Description |
|---|---|
array |
Required. Specifies the array. |
mode |
Optional. Specifies the mode. Possible values:0 - Default. Does not count all elements of multidimensional arrays1 - Counts the array recursively (counts all the elements of multidimensional arrays) |
Example
<?php
// Example 1
$cities = array("New York", "London", "Tokyo", "Berlin", "Cairo");
echo sizeof($cities) . "<br>";
// Example 2
$persons = array(
"Mark" => array(22, "USA"),
"Jeff" => array(32, "JPN"),
"Mike" => array(28, "RUS")
);
echo sizeof($persons) . "<br>";
echo sizeof($persons, 1) . "<br>";