Driving me bonkers (simple PHP)

noswad · 05-22-2006, 07:59 PM

Hello.

Is it possible to take the end of a link e.g. .com/?id=123 and insert the '123' into the into a field of a registration page using PHP so I can log which users have referred others.

Thanks.

xemiterx · 05-23-2006, 10:37 AM

It is both possible and easy. If you had x.com/page.php?id=xx and

PHP Code:

  echo '<input type=hidden name=id value=' . $_GET['id'] . '>'; 

????: NamePros.com http://www.namepros.com/programming/201199-driving-me-bonkers-simple-php.html

somewhere on page.php then you would have a hidden form element containing the id of the referer.

noswad · 05-23-2006, 05:25 PM

Thanks v much!

noswad · 05-25-2006, 09:44 PM

Hi

I got this working at first by changing the code a little bit but for some reason I can't get it to work any more.

Could anyone help me please? Its driving me nuts.

David

P.S. The field doesn't have to be hidden although I would prefer it to be

Eric · 05-25-2006, 10:12 PM

Merged your threads

Really isn't that hard either.. and would suggest the same as xemiterx.

PHP Code:

  <?php

????: NamePros.com http://www.namepros.com/showthread.php?t=201199
 
$id = intval($_GET['id']);

 
echo '<input type="hidden" name="id" value="' . $id . '">';  

 
?>

What did you change? ^^ Should work just fine.

noswad · 05-26-2006, 05:32 AM

Excellent thanks. One little problem though -

If register.php?id=[text] the form is submitting '0' but if the id=[numbers] it's submitting correctly.

Any clues?

Thanks again

Eric · 05-26-2006, 11:26 AM

Ok, I was assuming the 'id' was just numerical, well, you could do the following:

PHP Code:

  <?php

 
$id = trim($_GET['id']);

 
if(preg_match("/([^a-z0-9]+)/i", $id))

{

    die('Invalid ID');

}

 
echo '<input type="hidden" name="id" value="' . $id . '">';  

????: NamePros.com http://www.namepros.com/showthread.php?t=201199
 
?>

noswad · 05-26-2006, 01:58 PM

Thanks v much. V grateful.

05-22-2006, 07:59 PM	THREAD STARTER #1 (permalink)
noswad NamePros Regular Join Date: Aug 2005 Location: Leeds, UK Posts: 263	Driving me bonkers (simple PHP) Hello. Is it possible to take the end of a link e.g. .com/?id=123 and insert the '123' into the into a field of a registration page using PHP so I can log which users have referred others. Thanks. __________________ Michael McIntyre - Fan site for the super funny UK comedian Michael McIntyre Last edited by noswad; 05-25-2006 at 10:08 PM.

05-23-2006, 10:37 AM	#2 (permalink)
xemiterx NamePros Member Join Date: Dec 2003 Location: Oregon Posts: 110	It is both possible and easy. If you had x.com/page.php?id=xx and PHP Code: `echo '<input type=hidden name=id value=' . $_GET['id'] . '>'; ????: NamePros.com http://www.namepros.com/programming/201199-driving-me-bonkers-simple-php.html` somewhere on page.php then you would have a hidden form element containing the id of the referer. __________________ Play Pac Man Boxhead Rooms Boxhead 2 Futoshiki Thing Thing 3

05-23-2006, 05:25 PM	THREAD STARTER #3 (permalink)
noswad NamePros Regular Join Date: Aug 2005 Location: Leeds, UK Posts: 263	Thanks v much! __________________ Michael McIntyre - Fan site for the super funny UK comedian Michael McIntyre

05-25-2006, 09:44 PM	THREAD STARTER #4 (permalink)
noswad NamePros Regular Join Date: Aug 2005 Location: Leeds, UK Posts: 263	Hi I got this working at first by changing the code a little bit but for some reason I can't get it to work any more. Could anyone help me please? Its driving me nuts. David P.S. The field doesn't have to be hidden although I would prefer it to be __________________ Michael McIntyre - Fan site for the super funny UK comedian Michael McIntyre Last edited by noswad; 05-25-2006 at 09:53 PM.

05-25-2006, 10:12 PM	#5 (permalink)
Eric Senior Member Join Date: Mar 2005 Posts: 4,948	Merged your threads Really isn't that hard either.. and would suggest the same as xemiterx. PHP Code: `<?php ????: NamePros.com http://www.namepros.com/showthread.php?t=201199 $id = intval($_GET['id']); echo '<input type="hidden" name="id" value="' . $id . '">'; ?>` What did you change? ^^ Should work just fine.

05-26-2006, 05:32 AM	THREAD STARTER #6 (permalink)
noswad NamePros Regular Join Date: Aug 2005 Location: Leeds, UK Posts: 263	Excellent thanks. One little problem though - If register.php?id=[text] the form is submitting '0' but if the id=[numbers] it's submitting correctly. Any clues? Thanks again __________________ Michael McIntyre - Fan site for the super funny UK comedian Michael McIntyre Last edited by noswad; 05-26-2006 at 05:40 AM.

05-26-2006, 11:26 AM	#7 (permalink)
Eric Senior Member Join Date: Mar 2005 Posts: 4,948	Ok, I was assuming the 'id' was just numerical, well, you could do the following: PHP Code: `<?php $id = trim($_GET['id']); if(preg_match("/([^a-z0-9]+)/i", $id)) { die('Invalid ID'); } echo '<input type="hidden" name="id" value="' . $id . '">'; ????: NamePros.com http://www.namepros.com/showthread.php?t=201199 ?>`

05-26-2006, 01:58 PM	THREAD STARTER #8 (permalink)
noswad NamePros Regular Join Date: Aug 2005 Location: Leeds, UK Posts: 263	Thanks v much. V grateful. __________________ Michael McIntyre - Fan site for the super funny UK comedian Michael McIntyre

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)