How To Wrap Google Adsense In Wordpress Posts Correctly

by Lam Nguyen on Jan 21
33 Comments

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It’s easy to add Google Adsense code in the top, the bottom of WordPress posts by edit your WordPress theme posts file. However, sometime you need to wrap Google Adsense code in WordPress posts, and you can not do as the same way as add it on top, bottom. This article will explain you how to do that.

For coupe of months ago, I published a post Wordpress Hack: Anything Can Be Added Anywhere In The Post Content. With that tutorial, you can add anything in WordPress posts on top, bottom before other plugins do, even right below the post excerpt.

Updated: Thanks to Jonathan Foucher and Nathan J. Brauer for notify me the replacement function. I need to visit more often on php manual site.

1. Replacement using str_replace() function

The only one way for you to insert Google Adsense or anything in WordPress Posts is using str_replace() function to scan the whole content for the string like <!-googlead-> then replace it by the Google Adsense code.

First, create a function like this one below in functions.php file:

function googleadsense($content){
  
  $adsensecode = 'GOOGLE ADSENSE GOES HERE';
  
  $pattern = '<!-googlead->';
  
  $content = str_replace($pattern, $adsensecode, $content);
  
  return $content;      
}

add_filter('the_content', 'googleadsense');

That’s all you need. Now, whenever you publish a post, insert <!-googlead-> in post content where you want Google Adsense to be displayed.

2. Using Shortcode API

From version 2.5.1, WordPress has supported Shortcode API, a simple set of functions for creating macro codes for use in post content. We need to write a function which is a shortcode handler function in funtions.php file. The return value of a shortcode handler function is inserted into the post content output in place of the shortcode macro.

In this case, we will use the shortcode [googlead] to insert Google Adsense code in WordPress post. All the code we need is:

function googlead_shortcode() {

  $adsensecode = 'GOOGLE ADSENSE SHORCODE GOES HERE';
  
  return $adsensecode;
}

add_shortcode('googlead', 'googlead_shortcode');

Refer to the code above, when the_content is displayed, the shortcode API will parse any registered shortcodes such as [googlead]. The return (Google Adsense code) by the shortcode handler will be inserted into the post body in place of the shortcode [googlead] itself.

In my conclusion, these two code snippets above is the simplest and easiest to insert wrap Google Adsense code in WordPress posts. However, you sometime need to change the Google Adsense code to display, you should use the WordPress Option value for Google Adsense code instead of adding the ad code in functions.php file. Have you tried to add options for your WordPress theme before? If not, please take a look at this post: Wordpress Theme Design with Options Adminstration. Hope this post is useful for you!

Author: Lam Nguyen

I'm Lam Nguyen, a 21 year old web developer writing about everything related to web design. I am owner of AEXT.NET and WhoFreelance.com Web Community News. You can catch me on twitter.

Posted in: Tutorials
Tags: Google, Google Adsense, Wordpress, WordPress Hack, WordPress Tips

33 User Comments

lawrence77 21. Jan, 2010 at 1:15 am #

i hope it will help me

Reply
annanta 21. Jan, 2010 at 1:23 am #

hi, thanks for the tutorial. right now i am using some plugins to insert Adsense on my post but i think this is the most easiest one and no need to add additional codes.

Reply
Madalin 21. Jan, 2010 at 1:49 am #

Wow…just a simple function and voila! …thanks man!

Reply
Jonathan Foucher 21. Jan, 2010 at 2:21 am #

ereg is THE slowest replacement function in PHP. You should never use it, even if you need regex capabilities. In your case its just plain stupid, because you don’t need a regex at all!!

a simple str_replace('','ADSENSE CODE', $content); would be faster and do the exact same thing. Please PLEASE, read at least this post : http://www.hm2k.com/posts/50-php-optimisation-tips-revisited to avoid doing similar mistakes in the future.

Reply
- Jonathan Foucher 21. Jan, 2010 at 2:22 am #
  
  grr, ate my code… it was meant to say :
  str_replace('<!-googlead->','ADSENSE CODE', $content);
  
  Reply
- Lam Nguyen 21. Jan, 2010 at 3:54 am #
  
  I appreciate your comment Jonathan. My big mistake is visit the update from php manual site seldom. No more mistake in the future. Thanks!
  
  Reply
Nathan J. Brauer 21. Jan, 2010 at 2:24 am #

Hey nice tutorial, but ereg_replace() was depreciated as of PHP 5.3.0 and removed as of PHP 6.0.0. You should revise the tutorial with an alternate method
This should work just fine in this case:
$content = str_replace($pattern, $adsensecode, $content);

Reply
Josh 21. Jan, 2010 at 3:01 am #

Very clear and concise piece Lam. This post has certainly urged me to make the switch to WP from EE.

Reply
- Lam Nguyen 21. Jan, 2010 at 3:35 am #
  
  Come one, stay with your EE, Joh! You are doing great!
  
  Reply
Richie 21. Jan, 2010 at 4:02 am #

I still haven’t got my Adsense codes. But when I do, I shall definitely come back to this post.

Bookmarked!! Thanks a lot, Lam

Reply
julio 21. Jan, 2010 at 8:34 am #

I really really hate using google ads on websites there is so many places to get better looking ads online. buy sell ads, Cj.com and alot more.
julio´s last blog ..16 Websites to display your Creative Work

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Lynn 21. Jan, 2010 at 7:33 pm #

thank u very much nguyen, i will to try
Lynn´s last blog ..Complete Customization and SEO Guide for Blog / Website

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denbagus 21. Jan, 2010 at 10:19 pm #

thank you for this tips.. very useful

Reply
IndoDX 24. Jan, 2010 at 6:06 am #

Let’s me try on my Blog.. thanks for share
IndoDX´s last blog ..TotalFinder: Your Apple Finder Solutions

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sriganesh 24. Jan, 2010 at 9:25 am #

thanks for the tip buddy
sriganesh´s last blog ..Win a TutsPlus Membership

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arquigrafico 24. Jan, 2010 at 10:34 pm #

How do you put that box that say “ENJOY THE ARTICLE,? BLENDIT ” to the left or related post ?
I like the way it looks!
arquigrafico´s last blog ..Descarga gratis bloques Bibliocad coloreados de Autocad

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- Lam Nguyen 24. Jan, 2010 at 10:35 pm #
  
  Edit the related posts template file.
  
  Reply
seo 27. Jan, 2010 at 1:43 am #

bad code
seo´s last blog ..Playstation 3 Kırıldı

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- Lam Nguyen 27. Jan, 2010 at 3:27 am #
  
  Why don’t you provide another better way? The comment form here is not restricted for a longer sentence like “bad code”
  
  Reply
TechChunks 28. Jan, 2010 at 10:13 am #

Nice tutorial. I know there are many plug-ins in Wordpress to do just this. But having in control of your own code is a far better thing. Thanks
TechChunks´s last blog ..Got 1500 Facebook/Twitter Friends? Your Brain Can’t Even Handle 150

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Sid 31. Jan, 2010 at 11:27 am #

Thnks for your tip really usefull mate
Sid´s last blog ..5 Most Effective Tricks to become a Successful Blogger

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Jamie 03. Feb, 2010 at 12:10 pm #

Thanks for this! Was nicely explained, alot of tutorials on the internet now seem to be hard to follow, so major well done!

Reply