How to Get Length of a Set in PHP

How to Get Length of a Set in PHP ?

To get the size of a set in PHP, you can use the count function on the set.

In this example,

We create a set named $set1 using the array function with some elements.
We use the count function on the set $set1 to get the number of elements in the set.
The count function returns the size of the set.
Finally, we print the size of the set to the output.

<?php
$set1 = array('apple', 'banana', 'cherry');
$size = count($set1);
echo 'Size of set1: ' . $size;
?>

Size of set1: 3

In this example,

We create an empty set named $emptySet using an empty array.
We use the count function on the set $emptySet to get the number of elements in the set.
Since the set is empty, the count function returns 0.
Finally, we print the size of the empty set to the output.

<?php
$emptySet = array();
$size = count($emptySet);
echo 'Size of emptySet: ' . $size;
?>

Size of emptySet: 0

In this tutorial, we learned How to Get Length of a Set in PHP language with well detailed examples.