(PHP 5 >= 5.1.0)
Countable::count — Count elements of a object
This method executed when using the count() function on a object implementing Countable.
This function has no parameters.
The custom count as integer.
Замечание: The return value is casted to integer.
Пример #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";
}
?>
Результатом выполнения данного примера будет что-то подобное:
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