PHP Dokumentation: Countable count
12. Januar 2010 von werner
Countable::count
(PHP 5 >= 5.1.0)
Countable::count — Count elements of an object
Beschreibung
abstract public int Countable::count ( void )
This method is executed when using the count() function on an object implementing Countable.
Parameter-Liste
Diese Funktion hat keine Parameter.
Beispiele
Beispiel #1 Countable::count() example
<?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";
}
?>Das oben gezeigte Beispiel erzeugteine ähnliche Ausgabe wie:
I have been count()ed 1 timesI have been count()ed 2 timesI have been count()ed 3 timesI have been count()ed 4 timesI have been count()ed 5 timesI have been count()ed 6 timesI have been count()ed 7 timesI have been count()ed 8 timesI have been count()ed 9 timesI have been count()ed 10 times
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