[Plugin: WordPress Form Manager] Naming uploaded files based on form data

Not an ideal one, but it fixes the problem. In the file.php file (should be under the types folder in the form-manager plugin folder), there is a function that reads as follows:

protected function getFormattedFileName($uniqueName, $itemInfo){
$pathInfo = pathinfo($_FILES[$uniqueName][‘name’]);
$fileNameFormat = trim($itemInfo[‘extra’][‘name_format’]) == “” ? get_option( ‘fm-file-name-format’ ) : trim($itemInfo[‘extra’][‘name_format’]);
if($fileNameFormat == “%filename%”){
$newFileName = $pathInfo[‘filename’];
}
else{
$fileNamePos = strpos($fileNameFormat, ‘%filename%’);
if($fileNamePos !== false){
if($fileNamePos > 0){
$before = substr($fileNameFormat, 0, $fileNamePos);
$after = substr($fileNameFormat, $fileNamePos + 10, strlen($fileNameFormat) – $fileNamePos – 10);
}
else{
$before = “”;
$after = substr($fileNameFormat, -1 * (strlen($fileNameFormat) – 10));
}
}
$newFileName = “”;
if($before != “”)
$newFileName.= fm_get_time($before);
if($fileNamePos !== false)
$newFileName.= $pathInfo[‘filename’];
if($after != “”)
$newFileName.= fm_get_time($after);
}
$newFileName.= ‘.’.$pathInfo[‘extension’];

return $newFileName;
}

Add the following before the final “return $newFileName;”

$newFileName = preg_replace(“/[^A-Za-z0-9_-\s.]/”, “”, $newFileName);

This essentially deletes all non-alphanumeric characters and spaces from the file name (and preserves periods, so the filetype is preserved). In the above example, “Dio, che nell’alma infondere.mp3” becomes “Dio che nellalma infondere.mp3.” Again, not an ideal solution, but it works.