создание динамического xml с php

вот мой xml-код

<autoLoad value="true"/> <autoPlay value="false"/> <playContinuously value="true"/> <jumpToNextCategory value="false"/> <loop value="false"/> <keepAspectRatio value="true"/> <volume value="50"/> <controlsPadding value="5"/> <showPreviewImage value="true"/> <showShareBtn value="false"/> <showHidePlaylistBtn value="false"/> <showFullScreenBtn value="true"/> <showMiddlePlayBtn value="true"/> <showWatermark value="true"/> <watermarkPos value="BR"/> <spaceKeyListener value="true"/> <clickListener value="true"/> <playlistSize value="0"/> <playlistThumbWidth value="70"/> <playlistThumbHeight value="50"/> <playlistThumbPadding value="10"/> <descriptionSize value="0"/> <descriptionTextPadding value="10"/> </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"/> <controllerBackground value="0x000000"/> <controllerButtons normal="0xCCCCCC" over="0xFFFFFF" down="0xFFFFFF"/> <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" /> <times value="0xCCCCCC"/> <share background="0x000000" bckAlpha="40" boxBck="0x000000" boxBckAlpha="70" labels="0xFFFFFF" errorText="0x00FF00" text="0x000000" textBck="0xFFFFFF" textBrd="0x000000" btnsNormal="0xCCCCCC" btnsOver="0xFFFFFF" btnsDown="0xFFFFFF"/> <playlist background="0x151515" line="0x202020" thumbBck="0x000000" thumbNormalAlpha="30" thumbOverAlpha="70" thumbSelectedAlpha="100" title="0x559BB5" description="0xCCCCCC"/> <category bckNormal="0x101010" titleNormal="0xCCCCCC" bckOver="0x000000" titleOver="0xFFFFFF" bckSelected="0x559BB5" titleSelected="0x000000"/> <description background="0x151515" line="0x202020" title="0xFFFFFF" description="0xCCCCCC"/> <scrollBar trackBar="0xCCCCCC" scrubBrdNormal="0xCCCCCC" scrubBckNormal="0x000000" scrubBrdOver="0xFFFFFF" scrubBckOver="0x000000" scrubBrdDown="0xFFFFFF" scrubBckDown="0x000000"/> </colors> <videos> <category title="Animations"> <video> <videoPath value="video.mp4"/> <previewImage value="image.jpg"/> <aspectRatio value="4:3"/> <totalTime value=""/> <watermarkPath value="http://mydomain.com"/> <watermarkLink value="http://mydomain.com"/> </video> </category> </videos> 

в этом коде я хочу изменить динамически динамически с помощью php

  <videoPath value="video.mp4"/> <previewImage value="image.jpg"/> 

или дайте мне знать, как я могу сгенерировать весь код с php или включить в php