Countable::count

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

Countable::countCount elements of an object

Descripción

public Countable::count(): int

This method is executed when the value for count() is an object implementing Countable.

Parámetros

Esta función no tiene parámetros.

Valores devueltos

The custom count as an int.

Ejemplos

Ejemplo #1 Countable::count() example

<?php

class Counter implements Countable
{
private
$count = 0;

public function
count(): int
{
return ++
$this->count;
}
}

$counter = new Counter;

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

?>

El resultado del ejemplo sería algo similar a:

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