ArrayObject::count

(PHP 5 >= 5.0.0)

ArrayObject::count — Get the number of public properties in the ArrayObject

说明

public int ArrayObject::count ( void )

Get the number of public properties in the ArrayObject.

参数

此函数没有参数。

返回值

The number of public properties in the ArrayObject.

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

范例

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());
?>

以上例程会输出：

int(1)
int(3)