/**
*
* Returns the path relative to the FileSystemUtils::getPiolRootPath(). If the path is not child of FileSystemUtils::getPiolRootPath()
* an exception in thrown.
*
* @param string $full_path The path to transform.
* @return string the relative path.
* @throws \Mbcraft\Piol\IOException If the path is not child of the FileSystemUtils::getPiolRootPath()
*
* @api
*/
public static function toRelativePath($full_path)
{
$full_path1 = str_replace(DS . "..", "", $full_path);
//pulizia doppie barre dai percorsi
$full_path2 = str_replace("//", DS, $full_path1);
if (strpos($full_path2, FileSystemUtils::getPiolRootPath()) !== 0) {
throw new IOException("Errore : il path non è relativo alla jail.");
} else {
$path1 = substr($full_path2, strlen(FileSystemUtils::getPiolRootPath()), strlen($full_path2) - strlen(FileSystemUtils::getPiolRootPath()));
$path2 = str_replace("\\", DS, $path1);
return $path2;
}
}