PHP: Turn relative links into absolute ones?

Discussion in 'Programming/Scripts' started by xtothez, Apr 19, 2005.

  1. xtothez

    xtothez New Member

    Hi,

    does anyone know of a function to turn relative links in HTML code (<a href="..."></a>, <img src="...">, ...) into absolute links?

    Any help is appreciated.

    X
     
  2. tagammeer

    tagammeer New Member

    Try this function:

    PHP:
    function absolute_url($txt$base_url){
      
    $needles = array('href="''src="''background="');
      
    $new_txt '';
      if(
    substr($base_url,-1) != '/'$base_url .= '/';
      
    $new_base_url $base_url;
      
    $base_url_parts parse_url($base_url);

      foreach(
    $needles as $needle){
        while(
    $pos strpos($txt$needle)){
          
    $pos += strlen($needle);
          if(
    substr($txt,$pos,7) != 'http://' && substr($txt,$pos,8) != 'https://' && substr($txt,$pos,6) != 'ftp://' && substr($txt,$pos,9) != 'mailto://'){
            if(
    substr($txt,$pos,1) == '/'$new_base_url $base_url_parts['scheme'].'://'.$base_url_parts['host'];
            
    $new_txt .= substr($txt,0,$pos).$new_base_url;
          } else {
            
    $new_txt .= substr($txt,0,$pos);
          }
          
    $txt substr($txt,$pos);
        }
        
    $txt $new_txt.$txt;
        
    $new_txt '';
      }
      return 
    $txt;
    }
    $txt is your HTML code where you want to convert your relative links. Works like a charm for me! :)
     
  3. xtothez

    xtothez New Member

    Hey, that's a nice one. Does exactly what I need. :D

    Thanks, tagammeer (btw, what is "tagammeer"? Is that a name, or does it mean something? Just curious... :rolleyes: )
     
  4. tagammeer

    tagammeer New Member

    No, it's not a name, "Tag am Meer" is German for "a day at the beach". I hope it gets warmer soon... :cool:
     
  5. Leszek

    Leszek New Member

    Like for example PHP-QT.
     
  6. mmrs151

    mmrs151 New Member

    Some Example please

    Hi, if you can give me an example how to use this wonderfull piece of code...
     
  7. falko

    falko Super Moderator ISPConfig Developer

    Code:
    $new_txt = absolute_url($txt, $base_url);
    where $txt holds the text that you want to modify and $base_url is the URL of the site.
     

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