Countable::count

(PHP 5 >= 5.1.0)

Countable::count — Count elements of an object

Descrizione

abstract public int Countable::count ( void )

This method is executed when using the count() function on an object implementing Countable.

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

The custom count as an integer.

Nota:
The return value is cast to an integer.

Esempi

Example #1 Countable::count() example


<?php
class myCounter implements Countable {
    private $count = 0;
    public function count() {
        return ++$this->count;
    }
}

$counter = new myCounter;

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

Il precedente esempio visualizzerà qualcosa simile 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