PHP Array Exercises : Merge two commas separated lists with unique value only

Last update on December 20 2024 10:23:18 (UTC/GMT +8 hours)

Write a PHP script to merge two commas separated lists with unique value only.

Sample Solution:

PHP Code:

<?php
// Define two comma-separated lists as strings
$list1 = "4, 5, 6, 7";
$list2 = "4, 5, 7, 8";

// Combine both lists with unique values only
// Explode the strings into arrays, merge them, remove duplicates, and implode back into a string
$result = implode("," , array_unique(array_merge(explode(",",$list1),explode(",", $list2))));

// Display the result
echo $result."\n";
?>

Output:

4, 5, 6, 7, 8

Flowchart:

PHP Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a PHP function to find unique values from multidimensional arrays and flatten them in 0 depth.
Next: Write a PHP a function to remove a specified duplicate entry from an array.