PHP Array Exercises : Remove duplicate values from an array which contains only integers or strings
PHP Array: Exercise-39 with Solution
Write a PHP program to remove duplicate values from an array which contains only strings or only integers.
Sample Solution:
PHP Code:
<?php
$colors = array(
0 => 'Red',
1 => 'Green',
2 => 'White',
3 => 'Black',
4 => 'Red',
);
$numbers = array(
0 => 100,
1 => 200,
2 => 100,
3 => -10,
4 => -10,
5 => 0,
);
$uniq_colors = array_keys(array_flip($colors));
$uniq_numbers = array_keys(array_flip($numbers));
print_r($uniq_colors);
print_r($uniq_numbers);
?>
Sample Output:
Array ( [0] => Red [1] => Green [2] => White [3] => Black ) Array ( [0] => 100 [1] => 200 [2] => -10 [3] => 0 )
Flowchart:

PHP Code Editor:
Contribute your code and comments through Disqus.
Previous: Write a PHP function to create a multidimensional unique array for any single key index.
Next: Write a PHP program to get a sorted array without preserving the keys.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
PHP: Tips of the Day
PHP: Where does PHP store the error log? (php5, apache, fastcgi, cpanel)
PHP stores error logs in /var/log/apache2 if PHP is an apache2 module. Shared hosts are often storing log files in your root directory /log subfolder. But...if you have access to a php.ini file you can do this:
error_log = /var/log/php-scripts.log
According to rinogo's comment: If you're using cPanel, the master log file you're probably looking for is stored (by default) at
/usr/local/apache/logs/error_log
If all else fails you can check the location of the log file using
<?php phpinfo(); ?>
Ref : https://bit.ly/2EffgH5
- Weekly Trends
- Python Interview Questions and Answers: Comprehensive Guide
- Scala Exercises, Practice, Solution
- Kotlin Exercises practice with solution
- MongoDB Exercises, Practice, Solution
- SQL Exercises, Practice, Solution - JOINS
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join
We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook