preg_match pattern question

[schris403]

I'm trying to create a script that scans an xml file for the closing element and if it exists, echo it. I would like to have it search the file to see if </xml1> or </xml2> exists, if so it should result the xml. Is it possible to add "or" to preg_match? Is there a more efficient way to do this? My code I use is below.

Thanks a lot!
Chris

<?php
$filename = 'file.xml';
$blank_file = 'blank.xml';

if (file_exists($filename)) {
		$xml = file_get_contents ($filename);
		if (preg_match("#</xml1>#", $xml)) {
		echo $xml;
		} else {
		$blank = file_get_contents ($blank_file);
		echo $blank;
		}
} else {
	$blank = file_get_contents ($blank_file);
	echo "$blank";
}
?> 

[NogDog]

Since it just a single character, you could use a character class:

if (preg_match("#</xml[12]>#", $xml)) {

In a situation where you need to do an "or", you can use the "|" operator within a sub-pattern:

if (preg_match("#</xml(1|2)>#", $xml)) {