What is the function of unlink() in PHP and how does it work?

The unlink() function in PHP is used to delete a file. It takes the file path as a parameter and removes the specified file from the filesystem. It is important to note that once a file is deleted using unlink(), it cannot be recovered. 

$file_path = 'example.txt';

if (file_exists($file_path)) {
    unlink($file_path);
    echo "File deleted successfully.";
} else {
    echo "File does not exist.";
}

Keywords

unlink() PHP function file deletion filesystem operations

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