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autolink URLs in strings

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Submitted on: 5/8/2004 3:12:49 AM
By: lixlpixel  
Level: Intermediate
User Rating: Unrated
Compatibility: PHP 3.0, PHP 4.0
Views: 10309
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     this script will detect URLs in a string and automatically creates links to this URLs. it removes the query-string and shows only the top-level of the site linked to as text.
 
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//**************************************
// for :autolink URLs in strings
//**************************************
i guess a lot of coders all over the web who helped me by showing me their code
code:
Can't Copy and Paste this?
Click here for a copy-and-paste friendly version of this code!
 
Terms of Agreement:   
By using this code, you agree to the following terms...   
  1. You may use this code in your own programs (and may compile it into a program and distribute it in compiled format for languages that allow it) freely and with no charge.
  2. You MAY NOT redistribute this code (for example to a web site) without written permission from the original author. Failure to do so is a violation of copyright laws.   
  3. You may link to this code from another website, but ONLY if it is not wrapped in a frame. 
  4. You will abide by any additional copyright restrictions which the author may have placed in the code or code's description. 
				
//**************************************
// Name: autolink URLs in strings
// Description:this script will detect URLs in a string and automatically creates links to this URLs. 
it removes the query-string and shows only the top-level of the site linked to as text.
// By: lixlpixel
//
// Inputs:a string with an url in it
must be with leading http(s):// or ftp://
//
// Returns:returns a string with all URLs in it as links
//
//This code is copyrighted and has// limited warranties.Please see http://www.Planet-Source-Code.com/vb/scripts/ShowCode.asp?txtCodeId=1360&lngWId=8//for details.//**************************************

<? 
    
$rawstring = '<p>for more PHP snippets go to http://fundisom.com/phpsnippets/snip and download what you like'; 
// i had to change the code because otherwise i'd have to
// submit a zip file instead of posting it -
// just change the [ and ] back to the appropriete chars.
$linkstring = preg_replace( '/(http|ftp)+(s)?:(\/\/)((\w|\.)+)(\/)?(\S+)?/i', '[a href="\0"]\4[/]>', $rawstring ); 
    
echo $linkstring; 
    
?>


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