PHP Array Exercises : Sorted array without preserving the keys

Last update on May 30 2025 13:13:56 (UTC/GMT +8 hours)

40. Sorted Array Without Preserving Keys

Write a PHP program to get a sorted array without preserving the keys.

Sample Solution:

PHP Code:

<?php
// Define an array with duplicate and non-duplicate values
$my_array = array("red", "black", "green", "black", "white", "yellow"); 

// Use array_unique to remove duplicate values and preserve keys
$sorted_unique_array = array_values(array_unique($my_array)); 

// Display the resulting array containing unique values
print_r($sorted_unique_array);

?>

Output:

Array                                                       
(                                                           
    [0] => Red                                              
    [1] => Green                                            
    [2] => White                                            
    [3] => Black                                            
)                                                           
Array                                                       
(                                                           
    [0] => 100                                              
    [1] => 200                                              
    [2] => -10                                              
    [3] => 0                                                
)

Flowchart:

For more Practice: Solve these Related Problems:

Write a PHP script to sort an array of integers in ascending order and then reindex the array using array_values().
Write a PHP function to perform a natural sort on an array and output the result as a zero-indexed array.
Write a PHP program to sort an associative array by value, then convert it to a numerically indexed array for output.
Write a PHP script to implement sorting on an array while stripping away the original keys and displaying only the values.

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