URL Variables

[Isityou]

I want to get the parameters users type in the URL, for example say a user types:

 

http://www.website.com/index.php?var1=test&var2=test1&var3=test2

 

How do I get the name of the variable the user declared (var1,var2,var3)?

[MasterACE14]

This question has been asked many many times before 

 

please check the forum before posting!

 

-----

 

this is what you're after:

<?php

echo $_GET["var1"];

 

outputs:

test

 

Regards ACE

[redarrow]

if your going to use varables in the url please also look at mod_rewite for secuity..

 

http://www.workingwith.me.uk/articles/scripting/mod_rewrite

[Isityou]

Please read the question thoroughly before replying. I do not want the value of the variable I want the actual name of the variable (var1, var2, var3).

[kenrbnsn]

The variable names are all indexes to the $_GET array, so you could use a foreach loop to get them:

<?php
foreach ($_GET as $var => $val)
   echo 'The variable ' . $var . ' has the value [' . $val . ']<br>';
?>

 

Ken

[Isityou]

How about unwanted variables, say form input?

[discomatt]

You use the loop, check if the variables shouldn't be there, then fail/exit/report if they do. Pretty straight forward

 

$varsyouwant = array('var1', 'var2', 'var3');

foreach ($_GET as $var => $val)

  if (!in_array($var, $varsyouwant) )

  echo 'GET variable "' . $var . '" should not be there.';

 

[Isityou]

Jesus Loves You, thanks.