Merry Christmas!
I'm looking at doing a web application using xml/xhtml/xforms and php. I think the data files will not be huge so i don't want to use MySQL database, I'll just append the data to the appropriate xml files.
My question is, suppose I have a form that submits and appends the results to an xml file via php. What if several people are doing the form at the same time and several submit at the same time (think of students taking an online exam). Will php automatically handle that? I'm assuming that there is no such thing as simultaneous submissions, as there should be at least milliseconds of difference between each submission. Will php take them one at a time without overwriting or freezing up or something?