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,

  1. We create a set named $set1 using the array function with some elements.
  2. We use the count function on the set $set1 to get the number of elements in the set.
  3. The count function returns the size of the set.
  4. 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,

  1. We create an empty set named $emptySet using an empty array.
  2. We use the count function on the set $emptySet to get the number of elements in the set.
  3. Since the set is empty, the count function returns 0.
  4. 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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