Echoing out xml for use in flash

Hi,
Im no good at php but managed to get a php script located in my theme-folder (the theme im using) to spit out an xml with information i wanted, iex: title, copy, images etc.

The only problem im getting is that when i first connect to get access to everything:

<?php
	require_once( '../../../wp-config.php' );

It automatically spits out “https://www.mydomain.com”*entries. For example, if i have 3 entries in my blog it spits out “https://www.mydomain.comhttps://www.mydomain.comhttps://www.mydomain.com”

All i want is to be able to ONLY echo out what i define without this nasty little extra bit getting spat out in the very first line of my xml.

Here is my entire code if that helps:

<?php
	// get connected
	require_once( '../../../wp-config.php' );

	//header('Content-type: application/xml');

	// variables
	$xml = "";
	$num_of_posts_to_display = 500;

	$xml .= '<madeofus>';
	$xml .= '<blog>';

	// query posts
	query_posts( 'showposts=' . $num_of_posts_to_display . '&post_type=post&post_status=publish&order=DESC' );

	if( have_posts() ) : while( have_posts() ) : the_post();

		// category ID
		$category = get_the_category();

		// get first thumbnail path
		preg_match_all( '|<img.*?src=[\'"](.*?)[\'"].*?>|i', $post->post_content, $m );

		// format XML
		$xml .= '<item>';
		$xml .= '<title>' . $post->post_title . '</title>';
		$xml .= '<postlink>' . get_permalink() . '</postlink>';

		$xml .= '<gallery>';
		if( $m[ 1 ][ 0 ] ) $xml .= '<image_1>' . $m[ 1 ][ 0 ] . '</image_1>';
		if( $m[ 1 ][ 1 ] ) $xml .= '<image_2>' . $m[ 1 ][ 1 ] . '</image_2>';
		if( $m[ 1 ][ 2 ] ) $xml .= '<image_3>' . $m[ 1 ][ 2 ] . '</image_3>';
		if( $m[ 1 ][ 3 ] ) $xml .= '<image_4>' . $m[ 1 ][ 3 ] . '</image_4>';
		if( $m[ 1 ][ 4 ] ) $xml .= '<image_5>' . $m[ 1 ][ 4 ] . '</image_5>';
		if( $m[ 1 ][ 5 ] ) $xml .= '<image_6>' . $m[ 1 ][ 5 ] . '</image_6>';
		if( $m[ 1 ][ 6 ] ) $xml .= '<image_7>' . $m[ 1 ][ 6 ] . '</image_7>';
		if( $m[ 1 ][ 7 ] ) $xml .= '<image_8>' . $m[ 1 ][ 7 ] . '</image_8>';
		if( $m[ 1 ][ 8 ] ) $xml .= '<image_9>' . $m[ 1 ][ 8 ] . '</image_9>';
		$xml .= '</gallery>';

		$xml .= '<category>' . $category[ 0 ]->cat_name . '</category>';
		$xml .= '<catid>' . bloginfo( 'home' ) . '?cat=' . $category[ 0 ]->cat_ID . '</catid>';
		$xml .= '<date>' . date( 'M j, Y', strtotime( $post->post_date ) ) . '</date>';
		$xml .= '<comments>' . $post->comment_count . '</comments>';
		$xml .= '<excerpt>' . wp_trim_excerpt( get_the_excerpt() ) . '</excerpt>';
		$xml .= '</item>';

	endwhile; endif;
	$xml .= '</blog>';
	$xml .= '</madeofus>';

	// output results
	echo $xml;

?>

Any help is much appreciated!

Thanks,
Chris