Max Strlen and Trim help.

[mbsimonds]

I have a script that is creating dynamic keywords and descriptions for my forums.

The script selects the post text from the database and then inserts it into the META Description Tag.

The problem is, if there is a photo posted in the forum, the description is including the [img} bbcode and img URL.

I figured that I could somehow use strlen combinded with trim to exclude parts of the text if any of the words is longer than N characters.

This is the code that is taking the title, post id, and text from the database and preparing it to be inserted into the META tags.

if($p) { 
      $sql = "SELECT post_subject, post_id, post_text FROM ".$prefix."_bbposts_text WHERE post_id='$p'"; 
      $result = $db->sql_query($sql); 
      $row = $db->sql_fetchrow($result); 
      $title = $row[post_subject];  //post subject 
      $post = $row[post_id];        //post id 
      $text = $row[post_text];      //post text 

  $MyNewDesc = "$title: $text"; 
  $etitle = "Forums - $title"; 
  $keywords = "forum,forums,$title,"; 
  $desclen = 250; // You can change description length for specific module and function here 
   }

I am not a PHP expert but have been able to work most things out, but not sure how to work this out. Any help would be appreciated.

This is what is the output in one of my pages for the description.

<META NAME="DESCRIPTION" CONTENT="Full tank shot: hi all..here is a full tank shot..
[img:e25b2133d3]http://i4.photobucket.com/albums/y124/2old4this12/7-18413.jpg[/img:e25b2133d3]">

Maybe there is something I could do that if [img: is found then exclude the rest of those characters and move to the next word.

[Weedpacket]

You've got a string that is to be used as the <meta> tag's content= attribute I presume.

$content = preg_replace('#\[(img:[a-f0-9]+\])(.*)\[/\\1#si', '', $content);

I'm guessing you're not interested in keeping the URL.

[mbsimonds]

Yes at the end of the script there is a string to post the content.

The rest of the code looks like this, not sure exactly what it's doing, but it definately isn't removing the bbcode image.

// Cleanup 
$search = array ("'<s cript[^>]*?>.*?</sc ript>'si", 
                      "'<[\/\!]*?[^<>]*?>'si", 
                      "'([\r\n])[\s]+'", 
                      "'&(amp|#38);'i", 
                      "'&(lt|#60);'i", 
                      "'&(gt|#62);'i", 
                      "'&(nbsp|#160);'i", 
                      "'&(iexcl|#161);'i", 
                      "'&(cent|#162);'i", 
                      "'&(pound|#163);'i", 
                      "'&(copy|#169);'i", 
                      "'&#(\d+);'e" 
                      ); 
$replace = array ( "", 
                      "", 
                      "\\1", 
                      "&", 
                      "<", 
                      ">", 
                      " ", 
                      chr(161), 
                      chr(162), 
                      chr(163), 
                      chr(169), 
                      "chr(\\1)" 
                      ); 
$MyNewDesc = preg_replace($search, $replace, $MyNewDesc); 
$description = substr($MyNewDesc,0,$desclen);

$_metastring .= "<META NAME=\"DESCRIPTION\" CONTENT=\"$description\">\n";

echo $_metastring;

And no, I don't need any of this to show up in the description.

[img:e25b2133d3]http://i4.photobucket.com/albums/y124/2old4this12/7-18413.jpg[/img:e25b2133d3]">

[mbsimonds]

😕

[mbsimonds]

$text is the string I would like to manipulate. Is there a simple way to just remove any element from that over 15 characters? Every bbcode [img... is going to be over 15 characters in length.

This is probably very simple, I'm just not that knowledgable in PHP.

[Weedpacket]

See above reply.

[mbsimonds]

I tried that and it didn't work. I do appreciate the help though.

[mbsimonds]

Scratch that, I got it to work. Thanks very much for your help.