ben mi sorunu anlayamadım yapmışsınız zaten

olustur.php
<?php
if($_POST){
$dosyaAdi	=$_POST['dosyaadi'];
$icerik	='
<?xml version="1.0" encoding="UTF-8"?>
<settings version="3.1.0">
<options><playerSize autoResize="true" width="500" height="350"/><controlsBar hide="true" hideDelay="10" space="10" display="|previous,playPause,stop,next|progress,time|volume|fullScreen,share|" sound="false" showMiddlePlayBtn="true" time="type2" expanded="true"/><videos buffer="10" keepAspectRatio="true" autoLoad="true" autoPlay="false" playContinuously="true" jumpToNextCategory="true" loop="false" random="false"/><volume default="70" format="horizontal"/><watermark visible="true" position="TL"/><toolTip buttonsToolTip="true" timeToolTip="true" hideDelay="2"/><listeners spaceKey="true" click="true" doubleClick="true"/><cursor hide="true" hideDelay="5"/><playlist position="B" size="70" hide="true" hideType="slide" hideDelay="4" thumbWidth="70" thumbHeight="50" thumbPadding="10"/><description visible="true" size="75"/><youTube defaultQuality="hd720"/></options><colors><playerBackground value="0x000000"/><preloader background="0x000000" bckAlpha="70" text="0xCCCCCC" circle="0x559BB5"/><middlePlayBtn arrowNormal="0xFFFFFF" bckNormal="0x000000" alphaNormal="60" arrowOver="0xFFFFFF" bckOver="0x000000" alphaOver="80" arrowDown="0xFFFFFF" bckDown="0x000000" alphaDown="100"/><controlsBar background="0x000000" buttonsNormal="0xBBBBBB" buttonsOver="0xFFFFFF" buttonsDown="0xBBBBBB"/><volume border="0x666666" background="0x000000" speaker="0xCCCCCC" bar="0x559BB5" /><volumeScrubBtn brdNormal="0xCCCCCC" bckNormal="0x000000" brdOver="0xFFFFFF" bckOver="0x000000" brdDown="0xFFFFFF" bckDown="0x000000"/><progressBar border="0x666666" background="0x000000" elapse="0x559BB5" download="0x999999"/><progressScrubBtn brdNormal="0xCCCCCC" bckNormal="0x000000" brdOver="0xFFFFFF" bckOver="0x000000" brdDown="0xFFFFFF" bckDown="0x000000"/><share background="0x000000" bckAlpha="60" boxBck="0x000000" boxBckAlpha="40" labels="0xFFFFFF" errorText="0xFF0000" text="0x000000" textBck="0xFFFFFF" textBrd="0x000000" btnsNormal="0xCCCCCC" btnsOver="0xFFFFFF" btnsDown="0xFFFFFF"/>
<playlist background="0x151515" bckAlpha="60" thumbBck="0x000000" thumbNormalAlpha="50" thumbOverAlpha="80" thumbSelectedAlpha="100"/><description background="0x151515" line="0x202020" title="0xFFFFFF" description="0xCCCCCC"/><scrollBar trackBar="0xCCCCCC" scrubBrdNormal="0xCCCCCC" scrubBckNormal="0x000000" scrubBrdOver="0xFFFFFF" scrubBckOver="0x000000" scrubBrdDown="0xFFFFFF" scrubBckDown="0x000000"/><caption size="14" color="0xFFFFFF" glowColor="0x000000"/><toolTip bckColor="0xFFFFFF" txtColor="0x000000" alpha="80"/></colors>
<videos>
			<video id="1">
				<videoPath value="deneme" />
				<previewImage value="images/video.jpg" />
				<thumbImage value="images/1.png" />
				<watermarkPath value="images/wm.png" />
				<watermarkLink value="" />
				<caption value="captionSamples/ratatouilleCapt.srt" />
				<title><![CDATA[]]></title>
				
				<description><![CDATA[]]></description>
			</video>
			';

$metin="xml içerik"; 
$olustur=fopen($dosyaAdi,"w"); 
$yazdýr= fputs($olustur,$icerik);
}
?>

<form action="" method="post">
<input type="text" name="dosyaadi">
<input type="submit" value="olustur">
</form>