How to write to file such symbols like --> " <-- or --> / <-- and --> < <-- and --> > <--- ?????

or it is better way to create xml file with such structure:

<?xml version="1.0" encoding="UTF-8"?>
<player showDisplay="yes" showPlaylist="no">
<song path="mp3/Absent_No control.mp3" title= "Absent- No control" />
</player>

i need that scrit read a directory, remove last for symbols (.mp3) and create a file with such structure. in this file only changing filename and filetitle, who is generated from filename

<?php
$default_dir = "./ist-04";
$fvardas = 'playlist.xml';
if(!($dp = opendir($default_dir))) die("Nepavyksta atidaryti katalogo $default_dir.");
while($file = readdir($dp) ) $filenames[] = $file;
closedir($dp);
$handle = fopen($fvardas, 'w+');

// Write $somecontent to our opened file.
if (file_put_contents($handle, $fvardas) === FALSE) {
echo "Cannot write to file ($fvardas)";
exit;
}
sort($filenames);
for($i=0; $i < count($filenames); $i++)

if($filenames[$i] != '.' && $filenames[$i] != '..'){
$last=substr($filenames[$i], 0, -4);
echo $last;
?><br><?;}?>

this script is not finished
can anyone tell me how to do the xml file, with structure who i wroted in post before ?

No idea about the XML, but you can write the " and symbols in php using escape sequences. The /, <, and > symbols don't require escape sequesnces, meanign you can just put the symbols in.