Convert emoji to images
I have a private plugin that exports all posts without 'themeing', so the output is just html of the content (with the post subject as H1, and date/time as H2).
If a post contains an emoji, it is displayed properly on a themed page. But if I save the HTML output to a file, the emoji comes out something like
eth;#159;#153;#129;
These are UniCode character (I think), and I need the generated HTML page to show the emoji as a graphic image.
My code that creates the HTML output uses a standard WP_Query object, then outputs the_content within the have_posts loop:
$thestring .= apply_filters('the_content',$post-post_content) // keep adding the content to $thestring
The $thestring variable, which contains all posts content, is then added to an HTML document, and that is output to a HTML file.
When I load the HTML file into the browser, the emoji is shown as something like 🙠. If I load the HTML file into Word 2010 (so I can convert the blog content into a Word document), it also shows up as 🙠.
How do I get the emoji content in the HTML file into a graphic? Is there some library I need to load via the plugin, or some conversion function? Again, the ultimate goal is to get all blog content into a Word document.
Update
I believe the problem is that my plugin is not loading some functions/JS that is used when a template is applied to the page. The template uses the the_content() function in the loop to output the posts. The template will output the emoji images properly.
But if I take the same loop that the template uses and use it in my plugin, the emoji images are not displayed. Any apply_filter to the_content does not matter; the plugin code will not display the emoji graphics. Only the template (applied to a page) will show emoji graphics.
So, the question might be restated as: what functions/includes are used in the page template that I need to add to my plugin?