Countable::count

(PHP 5 >= 5.1.0, PHP 7)

Countable::count — Count elements of an object

Descrierea

abstract public Countable::count ( void ) : int

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

Parametri

Această funcție nu are parametri.

Valorile întoarse

The custom count as an integer.

Notă:
The return value is cast to an integer.

Exemple

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";
}
?>

Exemplul de mai sus va afișa ceva similar cu:

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