Countable::count

(PHP 5 >= 5.1.0)

Countable::countشمارش تعداد اجزای شی

Description

abstract public int Countable::count ( void )

این متد هنگام اجرای تابع count() بر شی پیاده‌سازی کنندهCountable فراخوانی می‌شود.

Parameters

This function has no parameters.

Return Values

شمارش به عنوان integer.

Note:

تبدیل مقدار بازگشتی به integer.

Examples

Example #1 مثال Countable::count()

<?php
class myCounter implements Countable {
    public function 
count() {
        static 
$count 0;
        return ++
$count;
    }
}

$counter = new myCounter;

for(
$i=0$i<10; ++$i) {
    echo 
"I have been count()ed " count($counter) . " times\n";
}
?>

The above example will output something similar to:

I have been count()ed 1 times
I have been count()ed 2 times
I have been count()ed 3 times
I have been count()ed 4 times
I have been count()ed 5 times
I have been count()ed 6 times
I have been count()ed 7 times
I have been count()ed 8 times
I have been count()ed 9 times
I have been count()ed 10 times

add a note add a note

User Contributed Notes 1 note

up
-2
SenseException
8 months ago
Even though Countable::count method is called when the object implementing Countable is used in count() function, the second parameter of count, $mode, has no influence to your class method.

$mode is not passed to  Countable::count:

<?php

class Foo implements Countable
{
    public function
count()
    {
       
var_dump(func_get_args());
        return
1;
    }
}

count(new Foo(), COUNT_RECURSIVE);

?>

var_dump output:

array(0) {
}
To Top