Page permalinks – .html ending?

Anyone?

Yes, it is posible.

You can do it changing page_structure in WP_Rewrite::get_page_permastruct (wp-includes/rewrite.php) or hack it with a plugin:

add_action('init', 'change_page_permalink', -1);
function change_page_permalink() {
	global $wp_rewrite;
	if ( strstr($wp_rewrite->get_page_permastruct(), '.html') != '.html' )
		$wp_rewrite->page_structure = $wp_rewrite->page_structure . '.html';
}

How exactly do I change that?
I tried several times, but each time resulting in some error.
What part of the rewrite.php to I change/delete/overwrite?

In my rewrite.php I see this:

function page_rewrite_rules() {
$uris = get_option(‘page_uris’);
$attachment_uris = get_option(‘page_attachment_uris’);

$rewrite_rules = array();
$page_structure = $this->get_page_permastruct();
if( is_array( $attachment_uris ) ) {
foreach ($attachment_uris as $uri => $pagename) {
$this->add_rewrite_tag(‘%pagename%’, “($uri)”, ‘attachment=’);
$rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure,

EP_PAGES));
}
}
if( is_array( $uris ) ) {
foreach ($uris as $uri => $pagename) {
$this->add_rewrite_tag(‘%pagename%’, “($uri)”, ‘pagename=’);
$rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure, EP_PAGES));
}
}

return $rewrite_rules;
}

When I go to Options > Permalinks and create custom structure: %postname%.html — why doesn’t that work?

Why do none of my posts of pages end with .html?

What am I missing?

This doesn’t appear to work anymore!

This may help

https://www.introsites.co.uk/33~html-wordpress-permalink-on-pages-plugin.html