Title: Ion Snytax Highlighter
Author: John
Published: <strong>May 8, 2009</strong>
Last modified: September 28, 2009

---

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This plugin **hasn’t been tested with the latest 3 major releases of WordPress**.
It may no longer be maintained or supported and may have compatibility issues when
used with more recent versions of WordPress.

![](https://s.w.org/plugins/geopattern-icon/ionhighlight.svg)

# Ion Snytax Highlighter

 By [John](https://profiles.wordpress.org/sidewindernet/)

[Download](https://downloads.wordpress.org/plugin/ionhighlight.zip)

 * [Details](https://wordpress.org/plugins/ionhighlight/#description)
 * [Reviews](https://wordpress.org/plugins/ionhighlight/#reviews)
 *  [Installation](https://wordpress.org/plugins/ionhighlight/#installation)
 * [Development](https://wordpress.org/plugins/ionhighlight/#developers)

 [Support](https://wordpress.org/support/plugin/ionhighlight/)

## Description

This plugin enables you to highlight syntax using the PEAR Text_Highlighter class.
Other syntax highlighters that use GeSHi have slower rendering speeds which will
increase your page load time. However, this plugin gives you the speed and efficiency
provided by the PEAR developers. You even have the option of enabling or disabling
the line numbers as well as specifying your own style.

## Installation

 1. Download ionhighlight.zip and unzip it.
 2. Upload the plugin folder to wp-content/plugins/ and activate from the Plugin administrative
    menu.

## FAQ

#### How do I highlight my code?

You can use the [code][/code] bbtags. Simply place your code between the tags and
your code will be highlighted. You may also specify one of the supported languages
by using the lang parameter – [code lang=”PHP”][/code]

#### How do I enable/disable line numbers?

Under the settings menu click on the Syntax Highlighter link. From there either 
select “Yes” or “No” to the Line Numbers option.

#### Characters are being converted to their HTML entities

This is because you have entered your code in Visual mode. You must enter your code
in HTML mode.

#### This plugin breaks my XHTML validation.

This plugin encapsulates code using div tags. Div is a block element and cannot 
be placed inside an inline element. This is probably causing your validation to 
break. If you place [code] tags inline, you are placing them inside a

<

p> which is an inline element. This causes your validation to break. Therefor you
must place [code] tags on a line by itself. For example: BAD This is hello world
in PHP: [code][/code] GOOD This is hello world in PHP:
 [code][/code]

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Ion Snytax Highlighter” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ John ](https://profiles.wordpress.org/sidewindernet/)

[Translate “Ion Snytax Highlighter” into your language.](https://translate.wordpress.org/projects/wp-plugins/ionhighlight)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/ionhighlight/), check
out the [SVN repository](https://plugins.svn.wordpress.org/ionhighlight/), or subscribe
to the [development log](https://plugins.trac.wordpress.org/log/ionhighlight/) by
[RSS](https://plugins.trac.wordpress.org/log/ionhighlight/?limit=100&mode=stop_on_copy&format=rss).

## Meta

 *  Version **1.3**
 *  Last updated **17 years ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 2.0.2 or higher **
 *  Tested up to **2.8**
 * Tags
 * [code](https://wordpress.org/plugins/tags/code/)[Highlight](https://wordpress.org/plugins/tags/highlight/)
   [syntax](https://wordpress.org/plugins/tags/syntax/)
 *  [Advanced View](https://wordpress.org/plugins/ionhighlight/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/ionhighlight/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/ionhighlight/reviews/)

## Contributors

 *   [ John ](https://profiles.wordpress.org/sidewindernet/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/ionhighlight/)