The highlight_file() function prints out a syntax highlighted version of the code contained in filename using the colors defined in the built-in syntax highlighter for PHP.
If the second parameter return is set to TRUE then highlight_file() will return the highlighted code as a string instead of printing it out. If the second parameter is not set to TRUE then highlight_file() will return TRUE on success, FALSE on failure.
Note: The return parameter became available in PHP 4.2.0. Before this time it behaved like the default, which is FALSE
Note: Since PHP 4.2.1 this function is also affected by safe_mode and open_basedir.
| Caution |
Care should be taken when using the highlight_file() function to make sure that you do not inadvertently reveal sensitive information such as passwords or any other type of information that might create a potential security risk. |
Many servers are configured to automatically highlight files with a phps extension. For example, example.phps when viewed will show the syntax highlighted source of the file. To enable this, add this line to the httpd.conf:
AddType application/x-httpd-php-source .phps |
See also highlight_string().