/* function to create sitemap.xml file in root directory of site */
// add_action("publish_post", "eg_create_sitemap");
// add_action("publish_page", "eg_create_sitemap");
add_action( "save_post", "eg_create_sitemap" );
function eg_create_sitemap() {
$postsForSitemap = get_posts( array(
'numberposts' => -1,
'orderby' => 'modified',
'post_type' => array( 'post', 'page' ),
'order' => 'DESC'
) );
$sitemap = '';
$sitemap .= "\n" . '' . "\n";
foreach( $postsForSitemap as $post ) {
setup_postdata( $post );
$postdate = explode( " ", $post->post_modified );
$sitemap .= "\t" . '' . "\n" .
"\t\t" . '' . get_permalink( $post->ID ) . '' .
"\n\t\t" . '' . $postdate[0] . '' .
"\n\t\t" . 'monthly' .
"\n\t" . '' . "\n";
}
$sitemap .= '';
$fp = fopen( ABSPATH . "sitemap.xml", 'w' );
fwrite( $fp, $sitemap );
fclose( $fp );
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