PHP Array Exercises : Sort an array using case-insensitive natural ordering

Last update on December 20 2024 10:22:59 (UTC/GMT +8 hours)

Write a PHP script to sort an array using case-insensitive natural ordering.

Sample Solution:

PHP Code:

<?php
// Define an array of colors with non-sequential keys
$colors = array(
    "color1", "color20", "color3", "color2"
);

// Sort the array in natural order, case-insensitive
sort($colors, SORT_NATURAL | SORT_FLAG_CASE);

// Iterate through the sorted array and display each element
foreach ($colors as $key => $val) {
    echo "Colors[" . $key . "] = " . $val . "\n";
}

?>

Output:

Colors[0] = color1                                          
Colors[1] = color2                                          
Colors[2] = color3                                          
Colors[3] = color20

Flowchart:

PHP Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a PHP program to sort a multi-dimensional array set by a specific key.
Next: Write a PHP function to sort entity letters.