(PHP 4, PHP 5, PHP 7, PHP 8)
highlight_file — Syntax highlighting of a file
Prints out or returns a syntax highlighted version of the code contained
in filename using the colors defined in the
built-in syntax highlighter for PHP.
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
filenamePath to the PHP file to be highlighted.
return
Set this parameter to true to make this function return the
highlighted code.
If return is set to true , returns the highlighted
code as a string instead of printing it out. Otherwise, it will return
true on success, false on failure.
| Version | Description |
|---|---|
| 8.3.0 | The resulting HTML has changed. |
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.
Note:
When the
returnparameter is used, this function uses internal output buffering so it cannot be used inside an ob_start() callback function.
Here is a simple, yet useful, tip... Issuing the following command under a Unix-like OS:
ln -s your_script.php your_script.phps
Will result in the creation of a symbolic link (called your_script.phps) to the source code (your_script.php). This way you have (apart from the source code .php) the highlighted version of your script (.phps) accessible via your web browser.