custom tags

I am looking for a way to parse custom html tags. I would like to then replace those tags with php/html code. Here is an example of the html file to be parsed. Notice the "component", they are the custom tags I wish to replace with code. I only need help in parsing the tags and storing in a variable or array so I can work with the attributes. The component tag will be the only tag I will need to work with. <html> <head> <title>test</title> </head> <body> <component name="menu" layout="horizontal" /> <component name="titlebar" /> </body> </html> This is what I was thinking, although if someone has better idea that is fine. I was thinking of storing these in a multi-dimensional array. An example might be $components[0][name][layout]. Is there code out there already that does this?