codeigniter

codeigniter: facebook social plugin – like button helper

Jun 20th

Posted by admin in codeigniter

No comments

Hello everybody,

I have just created a short helper to create facebook like button dynamically for any content, by just giving-in the URL of the page. Hope this one also helps you like my other helpers :)

Helper function:

  1.  
  2. if(!function_exists(‘facebook_like’)){
  3.  function facebook_like($url){
  4.  $formlink=‘<iframe src="http://www.facebook.com/plugins/like.php?href=’;
  5.   $formlink .= urlencode($url);
  6.   $formlink .= ‘;layout=button_count&amp;show_faces=true&amp;width=450&amp;action=like&amp;colorscheme=light&amp;height=21" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:450px; height:21px;" allowTransparency="true"></iframe>’;
  7.                
  8.   return $formlink;
  9.   }
  10.  }
  11.  

Usage:

  1.  
  2. <?php
  3. $url = current_url();
  4. echo facebook_like($url);
  5. ?>
  6.  

Note:
As you can see the function requires you to use the codeigniter’s native URI helper.

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Codeigniter: Helper – Create breadcrumb from url

May 12th

Posted by admin in codeigniter

3 comments

Breadcrumb is a navigational tool that developer often integrate in their application to give easy access to different segment of the application. This is used in applications which has multiple sequence of activities.

The following code will go into your helper file and you have to call create_breadcrumb(); function to get the formatted html text;

  1. if(!function_exists(‘create_breadcrumb’)){
  2. function create_breadcrumb(){
  3.   $ci = &amp;get_instance();
  4.   $i=1;
  5.   $uri = $ci->uri->segment($i);
  6.   $link = ‘<ul>’;
  7.  
  8.   while($uri != ”){
  9.     $prep_link = ”;
  10.   for($j=1; $j<=$i;$j++){
  11.     $prep_link .= $ci->uri->segment($j).’/';
  12.   }
  13.  
  14.   if($ci->uri->segment($i+1) == ”){
  15.     $link.=’<li>» <a href="’.site_url($prep_link).’"><b>’.$ci->uri->segment($i).’</b></a></li> ’;
  16.   }else{
  17.     $link.=’<li>» <a href="’.site_url($prep_link).’">’.$ci->uri->segment($i).’</a></li> ’;
  18.   }
  19.  
  20.   $i++;
  21.   $uri = $ci->uri->segment($i);
  22.   }
  23.     $link .= ‘</ul>’;
  24.     return $link;
  25.   }
  26. }
  27.  

If the current url is http://www.domain.com/user/add then the create_breadcrumb() function will return -

  1. » user » ad

Here user is linked to http://www.domain.com/user/ and add is linked to http://www.domain.com/user/add

This is generated by calling in the view file. Try it out and let me know how it went :)

thanks,

thephpx

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Codeigniter: Helper – absolute path helper

May 12th

Posted by admin in codeigniter

No comments

Recently I decided to give some more time to my blog and write some short but interesting posts. I will be writing some posts about custom helper functions that I have written which helps me in application development.

First on the list is a absolute path helper which creates an absolute path, relative to the base of the application. I call this function base_path(‘relative/url’);

  1. if(!function_exists(‘base_path’)){
  2.     function base_path($relative_path_location){
  3.         return base_url().$relative_path_location;
  4.     }
  5. }

The above is the code which will go into your helper file. The function formulates an absolute url from the given relative path based on base path of the application directory. It uses the existing base_url() helper function in codeigniter. So, you have make sure the URL helper is already loaded.

Example:

Suppose you want to tag an image which is located at “application-root/images/picture.jpg” to give its absolute URL in the img tag you can type as follows in your template/view file.

  1. <img src="<?php echo base_path(‘images/picture.jpg’);?>" alt="picture"/>

If you application is hosted at domain.com then it will give http://www.domain.com/images/picture.jpg as the returned path where http://www.domain.com/ is the base_url();

thanks,

thephpx

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PHP Simple HTML DOM Parser, Codeigniter Integration

Oct 25th

Posted by admin in codeigniter

4 comments

Hi all,

I came across “Simple HTML DOM Parser” recently that allows jQuery like DOM selection. This function is quite handy to do some kungfoo DOM manipulation on the fly!

I needed to use it on codeIgniter so modified the files and integrated it into a single codeIgniter library. The original files can be accessed from here its sourceforge project page. For the codeigniter version of the library click here.

  1. $this->load->library(‘domparser’);
  2. $html = $this->domparser->file_get_html(‘http://www.google.com/’);
  3. $rank = $html->find(‘b.gb1′);
  4.  
  5. print_r($rank); // will show all content of tag with class gb1

For further utility functions of the DOM parser visit this link.

Feel free to comment or contact me directly for any query.

take care,

thephpx

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