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PHP highlight_string() Function

< PHP Misc Reference

Example

Output a string with the PHP syntax highlighted:

<html>
<body>
<?php
highlight_string("Hello world! <?php phpinfo(); ?>");
?>
</body>
</html>

The browser output of the code above will be:

Hello world! <?php phpinfo(); ?>

The HTML output of the code above will be (View Source):

<html>
<body>
<code>
<span style="color: #000000">Hello world! 
<span style="color: #0000BB"><?php phpinfo</span>
<span style="color: #007700">(); </span>
<span style="color: #0000BB">?></span>
</span>
</code>
</body>
</html>

Definition and Usage

The highlight_string() function outputs a string with the PHP syntax highlighted. The string is highlighted by using HTML tags.

The colors used for highlighting can be set in the php.ini file or with the ini_set() function.

Syntax

highlight_string(string,return)

Parameter	Description
string	Required. Specifies the string to highlight
return	Optional. If this parameter is set to TRUE, this function will return the highlighted code as a string, instead of printing it out. Default is FALSE

Technical Details

Return Value:	Returns TRUE on success, or FALSE on failure
PHP Version:	4+
Changelog:	The return parameter was added in PHP 4.2.0

< PHP Misc Reference