Inserting address of referer with php?

**Justin Sampson** · Nov 23, 2000 13:17

Hi,
I have this code:

Code:

<html>
<head>
<title>Print</title>
</head>
<body bgcolor="#ffffff" text="#000000" id=all>
<?
$url = 'http://www.webdevelopershq.com/articles/article_1.shtml';

$lines_array = file($url);

$lines_string = implode('', $lines_array);

eregi("<!-- content -->(.*)<!-- /content -->", $lines_string, $head);

echo $head[0];
?>
</body>
</html>

Where it has $url = 'http://www.webdevelopershq.com/articles/article_1.shtml';

How can I get it to insert the address of the refering page automaticly?

Thanks,
Justin Sampson

**Son Nguyen** · Nov 23, 2000 23:45

You could use phpinfo() method for getting some environment variables.
I believe they has some for that, but don't have time to check for details. Sorry!

**Karl** · Nov 24, 2000 06:20

$url = getenv( 'HTTP_REFERER' );

That should do the job for you.

**Justin Sampson** · Nov 24, 2000 15:11

Hi,
Karl, Thats what I thought I would have to do but I can't get it to work. Check out http://www.webdevelopershq.com/articles/article2.shtml and then go to http://www.webdevelopershq.com/print.php I just get this error:

Warning: file("") - No such file or directory in /home/webdevel/public_html/print.php on line 9

Warning: Bad arguments to implode() in /home/webdevel/public_html/print.php on line 11

I thought that I would have to use HTTP_REFERER but no matter how I typed it in the code it doesn't insert an address?

Is this right so far?

Code:

<?
$url = getenv( 'HTTP_REFERER' );

$lines_array = file($url);

$lines_string = implode('', $lines_array);

eregi("<!-- content -->(.*)<!-- /content -->", $lines_string, $head);

echo $head[0];
?>

It works fine if I just type in the full address but if I did that I would need a copy of that code for every article on my site!

Thanks,
Justin Sampson

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