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PHP highlight_string() Function

PHP Misc Reference Complete PHP Misc Reference

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.

This function returns TRUE on success, or FALSE on failure.

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

Example

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

The output of the could above could be:

Hello world! <?php phpinfo(); ?>

and, if you select "View source" in the browser window, it will look something like this:

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

PHP Misc Reference Complete PHP Misc Reference
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