Hello coders,

Here’s a snippet that can help you to remove a non-empty directory from the server. It’s a recursive function that deletes the directory with its files, folders and sub-folders.

<?php
function delete_directory($dir)
{
if ($handle = opendir($dir))
{
$array = array();

    while (false !== ($file = readdir($handle))) {
        if ($file != "." && $file != "..") {

			if(is_dir($dir.$file))
			{
				if(!@rmdir($dir.$file)) // Empty directory? Remove it
				{
                delete_directory($dir.$file.'/'); // Not empty? Delete the files inside it
				}
			}
			else
			{
               @unlink($dir.$file);
			}
        }
    }
    closedir($handle);

	@rmdir($dir);
}

}

$dir = '/home/path/to/mysite.com/folder_to_delete/'; // IMPORTANT: with '/' at the end

$remove_directory = delete_directory($dir);
?>

If you need for any reason to remove an extension from a filename (string) this snippet can help you. An extension in this case is everything after the last period from the whole string.

<?php
/*
Source: Bit Repository (http://www.bitrepository.com/)
*/
function remove_filename_extension($filename)
{
$extension = strrchr($filename, ".");

$filename = substr($filename, 0, -strlen($extension));

return $filename;
}

$filename = 'This-is-a-photo-description.jpeg';

$str = remove_filename_extension($filename);

echo $str;
?>

This function removes empty values from an array. This is useful if you’re working with dynamical arrays (for instance data harvested from a web site).

<?php
/*
Credits: Bit Repository
URL: http://www.bitrepository.com/web-programming/php/remove-empty-values-from-an-array.html
*/
function remove_array_empty_values($array, $remove_null_number = true)
{
	$new_array = array();

	$null_exceptions = array();

	foreach ($array as $key => $value)
	{
		$value = trim($value);

        if($remove_null_number)
		{
	        $null_exceptions[] = '0';
		}

        if(!in_array($value, $null_exceptions) && $value != "")
		{
            $new_array[] = $value;
        }
    }
    return $new_array;
}
?>

Example of usage:

$array = array("white", "yellow", 0, "green", " ", "navy");

$remove_null_number = true;
$new_array = remove_array_empty_values($array, $remove_null_number);

echo '<pre>'; print_r($new_array); echo '</pre>';

The new array will look like this:

Array
(
    [0] => white
    [1] => yellow
    [2] => green
    [3] => navy
)

NOTE: If you wish to keep the null number (0) then set the variable $remove_null_number to false.