Carsten Jonstrup

The PHPEval Plugin is a WordPress plugin which allows users to write php code inside of their pages. Embedded php code will be executed when the post is shown. In doing so, the plugin offers the possibility to utilize dynamic content inside of posts. In contrast to other plugins with the same aim, this on is focus on security. Here’s a features list:
<ul>
<li>Easy to setup and configure</li>
<li>Simple syntax</li>
<li>Central administration of code</li>
<li>More coming up soon!</li>
</ul>
YES, I do consider feature requests, and that is what makes this plugin work. The discussions go here: <a href="http://code.google.com/p/phpeval/" title="Technical Support" rel="nofollow ugc">Technical Support</a>

PHPEval

The PHPEval Plugin is a Wordpress plugin which allows users to write php code inside of their pages. Embedded php code will be executed when the post  …

k0tik

The usual Text widget allows you to insert arbitrary Text and/or HTML code. This allows that too, but also parses any PHP or JavaScript code in the text widget and executes it.
This plugin is based on “PHP Code Widget”, but now available for use by site administrators ONLY, which makes it more secure.
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. Also JavaScript code must be enclosed in the <code><script></code> and <code></script></code> tags, as usual.

Safe PHP Code Widget

Adds a secure and simple widget in which you can use PHP and JavaScript code. Also you can use unfiltered HTML or just Text. Admin Use Only.

PHPEval vs Safe PHP Code Widget