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easy question on variables

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easy question on variables

Postby icu90ucme » Wed Aug 06, 2003 9:23 am

im trying to pass this variable through this link

Code: Select all
<td>Suspended <a href="take_off_suspension.php?username=$usr[username]">Take off</a></td>


on the take_off_suspension.php page i have
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  $username = $HTTP_GET_VARS['username'];
  echo $username;


the result that is echo'd is "$usr[username" instead of the actual value... does anybody know a fix
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Postby swirlee » Wed Aug 06, 2003 10:11 am

First, of all, you're calling your array element wrong. When specifying an associative index, the index must be specified as a string, e.g. between quotation marks:

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<?
   $arr = array('a' => 1, 'b' => 2);

   // this is very wrong:
   echo $arr[a];

   // this is correct:
   echo $arr['a'];   
?>


Doing it without the quotes still works, but it's deprecated functionality and should never be done. You can read about it in the "Array do's and don'ts" section on this page.

Secondly, I think your problem is that you're trying to access a variable from outside PHP. PHP ignores everything that isn't between <? and ?> tags. So, instead of this:

Code: Select all
<a href="take_off_suspension.php?username=$usr[username]">Take off</a>


You want this:

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<a href="take_off_suspension.php?username=<? echo $usr['username']; ?>">Take off</a>


Or you can use the short syntax:

Code: Select all
<a href="take_off_suspension.php?username=<?= $usr['username'] ?>">Take off</a>
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