materialpool old slug generate wpcli cmds

gen.php

<?php

include "wp-load.php";

$files = array(
	'themenseiten-sammlung-1.xml',
	'themenseiten-sammlung-2.xml',
	'themenseiten-sammlung-3.xml',
);

foreach ( $files as $file ) {
	$doc = new DOMDocument();
	$doc->load($file);

	$items = $doc->getElementsByTagName("item");
	foreach ($items as $item) {
		$titel = '';
		$id = '';
		$oldslug = '';
		foreach ( $item->childNodes as $child ) {
			if (  $child->tagName ) {
				if ( $child->tagName == "title") {
					$titel = $child->nodeValue;
				}
				if ( $child->tagName == "wp:postmeta") {
					$value = $child->nodeValue;
					$pos = strpos( $value, '/tagpage/' );
					if ( $pos !==  false ) {
						$oldslug = trim ( substr( $value ,$pos ) );
					}
				}
			}
		}
		$page = get_page_by_title( $titel, "OBJECT", 'material' );
		if ( $page != null ) {
			$id = $page->ID;

			if ( $id != '' && $titel != "" && $oldslug != "" ) {
				?>
				wp post meta set <?php echo $id; ?> old_slug <?php echo $oldslug; ?> <br>
			<?php
			}
		}
	}
}