Link Checkers
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<?php
//=============================================================================
//
// Function: OUCH
//
// Input: STRING $str - a text or line
//
// Output: STRING $str2 - a text or line with the links replaced with a
// <A href tag
//
// Description: This function replaces a http, https or www in a text with a
// html A tag
//
//=============================================================================
function OUCH($str)
{
// case insensitive regexp.
// -- protocol tag or www
$str2 = preg_replace("!(((http(s?)://)|(www.))".
// -- rest of the host, topdomain is 2-4 letters
"([-a-z0-9.]{2,}.[a-z]{2,4}".
// -- port (optional)
"(:[0-9]+)?)".
// -- path (optional)
"((/([^s]*[^s.,"'])?)?)".
// -- parameters (optional, but obligated to begin with a question mark)
"((?([^s]*[^s.,"'])?)?))!i",
// replace it with <a tag
"<a href="http\4://\5\6\8\9">\1</a>",
$str);
return $str2;
}
?>
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Usage Example
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$str = "With text from a textarea, where the user can input some links like http://www.url.nl, sometime you want that the URL is set to a htm,l A tag instantly!n".
"Also a link without the http:// is a match like www.watchmouse.com.n".
"As you can see is the ending dot in the link not parsed and perfectly left alone!";
print OUCH($str);
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