PHP rmdir(): Delete Directory

The rmdir() function in PHP is used to remove an empty directory.

Here's the syntax for the rmdir() function:

rmdir(directory, context)

Parameters:

directory: Required. Specifies the directory to delete. This can be a path.
context: Optional. Specifies the context of the file handle. Context is a set of options that can modify the behavior of a stream.

Here's an example of how to use rmdir():

<?php
if (!rmdir('test')) {
    echo 'Could not remove directory';
} else {
    echo 'Directory removed successfully';
}
?>

In this example, the rmdir() function is used to remove a directory named 'test'. If the directory cannot be removed (for example, due to permissions issues, or if the directory is not empty), the script will output 'Could not remove directory'. If the directory is removed successfully, it will output 'Directory removed successfully'.

Important points to note:

The rmdir() function can only be used on an empty directory. If the directory is not empty, you will need to first delete all files and subdirectories within it.
Be careful when using rmdir(), as deleting directories cannot be undone. Make sure you are deleting the correct directory and that it is no longer needed.
Always check if a directory exists before trying to delete it. You can use the file_exists() or is_dir() functions to do this. If you attempt to remove a directory that does not exist, rmdir() will return FALSE and generate a warning.
The directory to be removed must be writable by the user PHP is running as in order for rmdir() to be successful.

How to delete a directory in PHP: Use rmdir() to delete an empty directory in PHP:
```
<?php
$directoryPath = 'directory_to_delete';
rmdir($directoryPath);
?>
```
Removing directories with rmdir() in PHP: Delete a directory using the rmdir() function:
```
<?php
$directoryPath = 'directory_to_remove';
rmdir($directoryPath);
?>
```
PHP rmdir() for deleting nested directories: Delete nested directories using rmdir():
```
<?php
$nestedPath = 'parent/child';
rmdir($nestedPath);
?>
```

Deleting directories with non-empty contents using rmdir() in PHP: rmdir() can only delete empty directories. To delete non-empty directories, use unlink() or rmtree() (a custom recursive function).

<?php
function rmtree($dir) {
    foreach (scandir($dir) as $file) {
        if ('.' === $file || '..' === $file) {
            continue;
        }
        $filePath = $dir . DIRECTORY_SEPARATOR . $file;
        is_dir($filePath) ? rmtree($filePath) : unlink($filePath);
    }
    rmdir($dir);
}

$directoryPath = 'non_empty_directory';
rmtree($directoryPath);
?>

PHP rmdir() and directory permissions: Ensure that you have the necessary permissions to delete a directory:

<?php
$directoryPath = 'directory_to_delete';
if (is_writable($directoryPath)) {
    rmdir($directoryPath);
} else {
    echo "Directory not writable, cannot delete.";
}
?>

Recursive directory removal with rmdir() in PHP: Implement recursive directory removal using a custom function:

<?php
function recursiveRmdir($dir) {
    foreach (scandir($dir) as $file) {
        if ('.' === $file || '..' === $file) {
            continue;
        }
        $filePath = $dir . DIRECTORY_SEPARATOR . $file;
        is_dir($filePath) ? recursiveRmdir($filePath) : unlink($filePath);
    }
    rmdir($dir);
}

$directoryPath = 'parent_directory';
recursiveRmdir($directoryPath);
?>

Handling errors and exceptions with rmdir() in PHP: Handle errors and exceptions when using rmdir():

<?php
$directoryPath = 'directory_to_delete';
if (@rmdir($directoryPath)) {
    echo "Directory deleted successfully";
} else {
    echo "Failed to delete directory";
}
?>

Deleting specific directories based on conditions in PHP: Delete directories based on conditions:

<?php
$directoryPath = 'conditional_directory';
if ($condition) {
    rmdir($directoryPath);
}
?>

PHP rmdir() for dynamic and user-generated directories: Delete dynamically or user-generated directories:

<?php
$userInput = $_POST['directory_to_delete'];
$directoryPath = 'uploads/' . $userInput;
rmdir($directoryPath);
?>

Confirming directory deletion with user prompts in PHP: Confirm directory deletion with user prompts:

<?php
$directoryPath = 'directory_to_delete';
$confirmation = readline("Are you sure you want to delete $directoryPath? (y/n): ");
if (strtolower($confirmation) === 'y') {
    rmdir($directoryPath);
    echo "Directory deleted.";
} else {
    echo "Deletion canceled.";
}
?>