Range()

Introduction

Array range is a useful PHP function that allows you to generate a range of elements in an array. It's a very powerful function that can save you a lot of time and effort when working with arrays.

Syntax

The syntax of the array range function is as follows:

array range ( mixed $start , mixed $end [, number $step = 1 ] )

Where:

• $start: The first value of the sequence.
• $end: The final value of the sequence.
• $step: Optional. The increment between values. Default is 1.

Examples

Here are some examples to help you better understand how to use the array range function:

Example 1

Generate an array with values from 0 to 5:

<?php

$numbers = range(0, 5);
print_r($numbers);

Output:

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

Example 2

Generate an array with values from -5 to 5:

<?php

$numbers = range(-5, 5);
print_r($numbers);

Output:

Array
(
    [0] => -5
    [1] => -4
    [2] => -3
    [3] => -2
    [4] => -1
    [5] => 0
    [6] => 1
    [7] => 2
    [8] => 3
    [9] => 4
    [10] => 5
)

Example 3

Generate an array with even numbers from 0 to 10:

<?php

$numbers = range(0, 10, 2);
print_r($numbers);

Output:

Array
(
    [0] => 0
    [1] => 2
    [2] => 4
    [3] => 6
    [4] => 8
    [5] => 10
)

Advantages of using array range

Using array range has several advantages:

• Saves time and effort: With array range, you can generate an array with a sequence of values in just one line of code.
• Easy to use: The syntax of array range is straightforward and easy to understand.
• Customizable: You can specify the start and end values, as well as the increment, allowing you to generate a wide range of sequences.

Conclusion

Array range is a very useful PHP function that can save you a lot of time and effort when working with arrays. It's easy to use, customizable, and can generate a wide range of sequences. We hope this guide has helped you better understand how to use the array range function in PHP.