Check For Module Presence in .htaccess

By  on  

One of my favorite Apache modules is mod_rewrite. mod_rewrite allows me to manipulate page URLs so that I can search engine friendly URLs. Not every Apache server has the mod_rewrite module installed so you will want to add a conditional statement within your .htaccess file to make sure it's there.

The .htaccess

#Wordpress's .htaccess code
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

If the "mod_rewrite.c" module is present, that means that mod_rewrite is available and will be used. If not, the mod_rewrite code will be ignored. Using this conditional statement will prevent 500 Internal Server Errors.

Recent Features

  • By
    Send Text Messages with PHP

    Kids these days, I tell ya.  All they care about is the technology.  The video games.  The bottled water.  Oh, and the texting, always the texting.  Back in my day, all we had was...OK, I had all of these things too.  But I still don't get...

  • By
    CSS 3D Folding Animation

    Google Plus provides loads of inspiration for front-end developers, especially when it comes to the CSS and JavaScript wonders they create. Last year I duplicated their incredible PhotoStack effect with both MooTools and pure CSS; this time I'm going to duplicate...

Incredible Demos

  • By
    CSS :target

    One interesting CSS pseudo selector is :target.  The target pseudo selector provides styling capabilities for an element whose ID matches the window location's hash.  Let's have a quick look at how the CSS target pseudo selector works! The HTML Assume there are any number of HTML elements with...

  • By
    Telephone Link Protocol

    We've always been able to create links with protocols other than the usual HTTP, like mailto, skype, irc ,and more;  they're an excellent convenience to visitors.  With mobile phone browsers having become infinitely more usable, we can now extend that convenience to phone numbers: The tel...

Discussion

  1. Jeff Hartman

    So what is the fallback for when it is not available? If you do this you need to make sure your code has a way to handle it, especially if your mod_rewrite conditions are passing get vars.

    I personally would like to know about a 500 server error so that I could fix the problem.

  2. shinzies

    Would it be fine to include this code into httpd.conf itself?
    Or is that a bad idea?

    Thanks David.

  3. shinzies

    Nope, the answer is it is bad idea because, Rewrite Base is only valid per-directory config files.

    :D

  4. how to make a link like this rerwiteRule index.php? module = article & id = 5

    thanks

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!