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How to Sort an Array in PHP - Step by Step Examples

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How to Sort an Array in PHP ?

Answer

To sort an array in PHP, you can use the sort() function for ascending order and rsort() function for descending order.

✐ Examples

1 Sort Integer Array in Ascending Order

In this example,

We create an integer array named $numbers with values 5, 2, 8, 1, 6.
We use the sort() function on the array to sort it in ascending order.
The sort() function sorts the array elements in ascending order.
Finally, we print the sorted array $numbers using print_r().

PHP Program

<?php
$numbers = array(5, 2, 8, 1, 6);
sort($numbers);
echo "Sorted array in ascending order: ";
print_r($numbers);
echo "\n";
?>

Output

Sorted array in ascending order: Array
(
    [0] => 1
    [1] => 2
    [2] => 5
    [3] => 6
    [4] => 8
)

2 Sort Integer Array in Descending Order

In this example,

We create an integer array named $numbers with values 5, 2, 8, 1, 6.
We use the rsort() function on the array to sort it in descending order.
The rsort() function sorts the array elements in descending order.
Finally, we print the sorted array $numbers using print_r().

PHP Program

<?php
$numbers = array(5, 2, 8, 1, 6);
rsort($numbers);
echo "Sorted array in descending order: ";
print_r($numbers);
echo "\n";
?>

Output

Sorted array in descending order: Array
(
    [0] => 8
    [1] => 6
    [2] => 5
    [3] => 2
    [4] => 1
)

Summary

In this tutorial, we learned How to Sort an Array in PHP language with well detailed examples.

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