How to Get Length of a Set in PHP - Step by Step Examples
How to Get Length of a Set in PHP ?
Answer
To get the size of a set in PHP, you can use the count
function on the set.
✐ Examples
1 Get Size of Set
In this example,
- We create a set named
$set1
using thearray
function with some elements. - We use the
count
function on the set$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 Program
<?php
$set1 = array('apple', 'banana', 'cherry');
$size = count($set1);
echo 'Size of set1: ' . $size;
?>
Output
Size of set1: 3
2 Get Size of Empty Set
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 Program
<?php
$emptySet = array();
$size = count($emptySet);
echo 'Size of emptySet: ' . $size;
?>
Output
Size of emptySet: 0
Summary
In this tutorial, we learned How to Get Length of a Set in PHP language with well detailed examples.
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