Countable::count
PHP function
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(PHP 5 >= 5.1.0, PHP 7, PHP 8)
Count elements of an object
Description
Countable::count(): int
This method is executed when the value for count() is an object implementing Countable.
Parameters Parameters
Return Values
The custom count as an int.
Examples
Countable::count() example
php
<?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";
}
?>The above example will output something similar to:
output
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