PHP Array Exercises : Delete a specific value from an array using array_filter() function

PHP Array: Exercise-53 with Solution

Write a PHP script to delete a specific value from an array using array_filter() function.

Sample Solution:

PHP Code:

 $colors = array('key1' => 'Red', 'key2' => 'Green', 'key3' => 'Black');
$given_value = 'Black';

$new_filtered_array = array_filter($colors, function ($element) use ($given_value) { return ($element != $given_value);}); 

Sample Output:

    [key1] => Red                                           
    [key2] => Green                                         
    [key3] => Black                                         
PHP Notice:  Undefined variable: filtered_array in /home/stu
dents/2f6e9db0-f423-11e6-a8c0-b738b9ff32f9.php on line 7    
    [key1] => Red                                           
    [key2] => Green                                         


Flowchart: PHP - Delete a specific value from an array using array_filter() function

PHP Code Editor:

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Previous: Write a PHP function to filter a multi-dimensional array. The function will return those items that will match with the specified value.
Next: Write a PHP script to remove all white spaces in an array.

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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


If all else fails you can check the location of the log file using

<?php phpinfo(); ?>

Ref : https://bit.ly/2EffgH5


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