I am not sure how many of you would have faced this problem, but I faced this many times. I am not good at memorizing things, so I give lot of code comment in my JavaScript code. And never wanted that comments to reach the client. So I used to remove comments from each file by a PHP code and then upload that minified file to the server.
Then an idea came across my mind. And I never removed comments afterwards. May be some of use would already be using this thing, but it's new to me, so thought of posting here.
Here it is...
- Instead of a regular name folder eg. js or scripts, in which you save your JavaScript files, save them in a random name folder. Something like js_kl32lnfdn.
- We call our external JavaScript files as
Expand|Select|Wrap|Line Numbers- <script type="text/javascript" src="/scripts/myscript.js"></script>
Expand|Select|Wrap|Line Numbers- function send_script($script)
- {
- echo "<script type=\"text/javascript\" src=\"/js.php?js=".$script."\"></script>";
- //don't use the XML style closing tag (<script .... />) IE would not read it.
- }
- In the root folder, save this PHP file (js.php)
Expand|Select|Wrap|Line Numbers- <?php
- //define the folder name, so that it can be changed anytime.
- define("FOLDER_NAME", "js_kl32lnfdn");
- //path for the original file
- $js_original = $_SERVER['DOCUMENT_ROOT']."/".FOLDER_NAME."/".$_GET['js'];
- //header for the javascript file (will give a warning if not provided)
- header("content-type:text/javascript; charset:UTF-8");
- //alert error if file doesn't exisit
- if (!file_exists($js_original))
- die('alert(\'JavaScript file error!\')');
- //include minificator class
- require('jsmin-1.1.0.php');
- //read and minify the content
- $minified = JSMin::minify(file_get_contents($js_original));
- //header for caching
- header("Expires: ".gmdate("D, d M Y H:i:s", (time()+9000)) . " GMT");
- //year to write on copyright notice
- $year = getdate();
- $year = $year['year'];
- //send your copyright notice
- echo "/* Copyright ".$year." - www.your-website.com */";
- //send the minified version
- echo $minified;
- ?>
What will happen is..
- The JavaScript file will get minified by the js.php file, which in itself will use a minificator class (not made by me).
- A file with path js_kl32lnfdn/script1.js will be called as js.php?js=script1.js. So one would never come to know the path to the original (commented) file.
- For futher security, like if you only want the logged in user to be able to call the javascript or other things, you can add some verification code just in the starting of the js.php.
Hope you will like it.
Regards,
Harpreet