How to create a Set of integers in PHP - Step by Step Examples

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How to create a Set of integers in PHP ?

Answer

To create a set of integers in PHP, you can use an array or the SplObjectStorage class.

✐ Examples

1 Create a Set of Integers using Array

In this example,

We create an array named integers containing integers.
We use the array_unique() function to remove duplicate elements.

PHP Program

<?php 
$integers = [1, 2, 3, 4, 5, 5];
$intSet = array_unique($integers);
print_r($intSet);
?>

Output

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
)

2 Create a Set of Integers using SplObjectStorage

In this example,

We create an instance of SplObjectStorage to store integers.
We use the attach() method to add integers to the set.

PHP Program

<?php 
$intSet = new SplObjectStorage();
$intSet->attach(1);
$intSet->attach(2);
$intSet->attach(3);
$intSet->attach(4);
$intSet->attach(5);

foreach ($intSet as $integer) {
    echo $integer . ' ';
}
?>

Output

1 2 3 4 5

Summary

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

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How to create a Set of integers in PHP - Step by Step Examples

How to create a Set of integers in PHP ?

Answer

✐ Examples

1 Create a Set of Integers using Array

PHP Program

Output

2 Create a Set of Integers using SplObjectStorage

PHP Program

Output

Summary

More PHP Sets Tutorials