passing variables

vbmurray

Could someone please help me figure this out. I am a newbie, and I am having trouble passing a variable from page to page.

1:
I have variable $image

echo $image; // equals 429.jpg string

<a href="website_request.php?image=$image">request information about this website</a>

2:
echo $image; // blank output

For some reason I cannot get anything to pass.

My global variables are on.

Someone please help

morrisoner

ahhh yeah for number 1. The $image isnt in a php block.

replace it with this
<a href="website_request.php?image=<?php echo $image ?>">request information about this website</a>

i think that should work, im a newbie too. i dont know about number 2

morrisoner

yeah once u do that, if it doesn't work normally.
use the $GET array to get it.
i think it might be something like $GET["image"];

sorry but i am new too

vbmurray

Thx.... my problem was where I was putting the PHP blocks....

h1bernate

Im having a similar problems with register_globals on. I have a series of thumbnails with links to a image.php file.

the link of the thumbnail includes the image number to load. image.php?Number=01. Now when i load the image file

<?php
$image=$HTTP_REQUEST_VARS['Number'];

echo
'<img src=image'.$image.'.jpg width="425" height="300">;'

the varible is blank, $_REQUEST also leaves a blank var.
is there another way to go about doing this.

Huuggee

First of all guys, turn register globals OFF.
It's a security risk for one and secondly it's good practice to program with them off. Saves you going back through your code to clear up when you want to go live.

h1bernate:
Depending on your version of PHP, since version 5 i believe that long superglobal names (ie $HTTP_REQUEST_VARS) are turned off now in the ini file by default.

That's not to say that 'Number' from your URL string shouldn't be in $_REQUEST[].

The best way to get number, too, is to use the $_GET superglobal

so the code

<?php
echo $image=$_GET['Number'];

echo '<img src=image'.$image.'.jpg width="425" height="300">';

should work for you.
I have echoed image as it is set, so it's output, to save looking in the source.
(you also had ' outside the ; on the img tag)

h1bernate

The server is running PHP 4.0.6, i don't have control of it so I can't upgrade.

I thought i tried $_GET and for some reason it didn't work, i guess not. $HTTP_GET_VARS seems to be doing the trick now.

Is there a security issue in creating an image this way?, i wanted to quick make a image page and not have to produce 100 seperate pages.

Thanks for your help.