Topher

This plugin provides a widget to render data take from The Joshia Project about a specific country, chosen by the site admin. The admin can choose from these bits of data to render in the widget:
<ul>
<li>Flag</li>
<li>Population</li>
<li>Unreached Percentage</li>
<li>People Groups</li>
<li>Unreached People Groups</li>
<li>Primary Language</li>
<li>Primary Religion</li>
<li>Percent Evangelical</li>
</ul>
<h3>Usage</h3>
Some basic CSS is included. If you’d like to turn it off, drop this code into your theme functions.php file or a plugin of your choosing.
<pre><code>function t1k-jp-country-data-styles-remove() {
 return false;
}
add_filter( 't1k-jp-country-data-styles', 't1k-jp-country-data-styles-remove' );
</code></pre>

The Joshua Project, Nation Info

Allows the site owner to render information from The Joshua Project about a specific country.

Samuel Wood (Otto)

The normal Text widget allows you to insert arbitrary Text and/or HTML code. This allows that too, but also parses any PHP code in the text widget and executes it.
This can make it easier to migrate to a widget-based theme. However, this plugin should not be used long term, as anybody with access to edit the widgets on your site will be able to execute arbitrary PHP code.
All PHP code must be enclosed in the standard php opening and closing tags ( <code><?php</code> and <code>?></code> ) for it to be recognized and executed.
Only users with the unfiltered_html role will be allowed to insert unfiltered HTML. This includes PHP code, so users without admin or editor permissions will not be able to use this to execute code, even if they have widget editing permissions.

PHP Code Widget

Simply Awesome !!! 

WHY IS THIS NOT IN THE CORE, AND WITH THE ADDED FUNCTIONALITY TO EXECUTE PHP IN THE EDITOR???

No, instead we waste our time with useless Gutenberg !!!

Thanks for the plugin, it is a time saver for me. I can put the code in a widget, and display the widget in the content area via a shortcode... does the job well.

Unfrieking Unfreikingbelievable !!!

No highlighting for snippets.Support also doesn't exists. You can find much better plugins to insert php code snippets

much better solutions

Like the Text widget, but also allows working PHP code to be inserted.

The Joshua Project, Nation Info vs PHP Code Widget