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PHP: find URL in a string

Hi All,

I have a string that contains an IMDB URL, the last folder varies e.g.

http://www.imdb.com/title/tt0892318/
http://www.imdb.com/title/tt0955308/

does anyone know how i can extract the URL?

Maverickerko

here is regexp for this url

(http://)*(www.|)*(imdb.com/title/)(\S*)(\/)

and code is
$url = "http://www.imdb.com/title/tt0892318/";
$pattern = '#^(http://)*(www.|)*(imdb.com/title/)(\S*)(\/)#';
$match = preg_match($pattern, $url, $matches);

print_r($matches);
?>

you have 0 or 1 in $match when url is found and id of title you have in $matches[4]

Marco Gasi

Try using $_SERVER['SCRIPT_NAME'] (http://php.net/manual/en/reserved.variables.server.php).

Hope this helps

Dave Baldwin

Here's an alternate version. Took me longer to check it.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
 "http://www.w3.org/TR/html4/loose.dtd">

<html>
<head>
<title>PHP Extract</title>
</head>
<body>
<h1>PHP Extract</h1>

<?php 
$teststr = "This that and the http://www.imdb.com/title/tt0892318/ in Southern LA.";

$tstart = strpos($teststr,"http://");
$tend = strpos($teststr," ",$tstart);

$tdat = substr($teststr,$tstart,($tend-$tstart));
echo $teststr."<br>";
echo $tdat."<br>";
 ?>
</body>
</html>

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detox1978

ASKER

I want to extract the URL, but dont know the tt folder as it will vary each time it is run.

Dave Baldwin

The code I posted extracts any url that starts with "http://". If you need to extract more than one instance in a string you can use the 'substr' function to get the string remaining after the last URL and do it again.

detox1978

ASKER

Thanks Dave, your code works, but there isn't always a space at the end of the URL

Maverickerko

my solution works for vary tt folder ... i

detox1978

ASKER

Maverickerko, i dont see where my string fits into your snippet.

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Dave Baldwin

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