PHP 8.1.28 Released!

ArrayObject::count

(PHP 5, PHP 7, PHP 8)

ArrayObject::countGet the number of public properties in the ArrayObject

Description

public ArrayObject::count(): int

Get the number of public properties in the ArrayObject.

Parameters

This function has no parameters.

Return Values

The number of public properties in the ArrayObject.

Note:

When the ArrayObject is constructed from an array all properties are public.

Examples

Example #1 ArrayObject::count() example

<?php
class Example {
public
$public = 'prop:public';
private
$prv = 'prop:private';
protected
$prt = 'prop:protected';
}

$arrayobj = new ArrayObject(new Example());
var_dump($arrayobj->count());

$arrayobj = new ArrayObject(array('first','second','third'));
var_dump($arrayobj->count());
?>

The above example will output:

int(1)
int(3)

add a note

User Contributed Notes 1 note

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0
bienvenunet at yahoo dot com
15 days ago
<?php
$array_object
= new \ArrayObject([]);
echo
count($array_object); // echos 1 ?!?
echo count($this->getArrayCopy()); // echos the correct answer, 0
?>

Make it make sense. I've spent a few hours trying to figure out why simple tests were failing and had to look this up to figure this out.
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