I want to dynamically submit form values into this xml file:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<globals soundFXvolume="5" fadeInTime="0.25" glowKnockout="false" glowInner="false" glowQuality="1" glowStrength="1" glowBlurRadius="2" glowAlpha="1"/>

however, i was trying to change the original xml file to this:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<globals>
  <soundFXvolume>5</soundFXvolume>
  <fadeInTime>0.25</fadeInTime>
  <glowKnockout>false</glowKnockout>
  <glowInner>false</glowInner>
  <glowQuality>1</glowQuality>
  <glowStrength>1</glowStrength>
  <glowBlurRadius>2</glowBlurRadius>
  <glowAlpha>1</glowAlpha>
</globals>

then from there, i will use php to submit the form values.

is there a way to submit my form values to the original xml below:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<globals soundFXvolume="want this to be form values" fadeInTime="0.25" glowKnockout="false" glowInner="false" glowQuality="1" glowStrength="1" glowBlurRadius="want this to be form values" glowAlpha="1"/>

thanks