function searchReplaceBuildXmlFile($search, $replace) {
	// Open file for read and string modification 
	$file = "/home/dpeter/sf/build.xml"; 
	$fh = fopen($file, 'r'); 
	$contents = fread($fh, filesize($file)); 
	$new_contents = str_replace($search, $replace, $contents); 
	fclose($fh); 	
	
	// Open file to write 
	$fh = fopen($file, 'w'); 
	fwrite($fh, $new_contents); 
	fclose($fh);	
}