How can the use of realpath() function improve the efficiency and accuracy of path handling in PHP scripts?

When working with file paths in PHP scripts, it is important to ensure that the paths are accurate and consistent. The realpath() function can help improve efficiency and accuracy by resolving any symbolic links, relative paths, or extra slashes in a given path, returning the absolute path to the file or directory. 

$path = "/var/www/html/../public_html/index.php";
$real_path = realpath($path);

echo $real_path;

Keywords

realpath efficiency accuracy path handling PHP scripts

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