passing variable using url - what's wrong?

[Leszek]

Hi.

I want to send a variable to my script using url.
I don't know why but echo in "szczegoly.php" display nothing...

// strona1.php
<A HREF=\"./szczegoly.php?nazwah=$nazwa_hotelu\">$nazwa_hotelu </A>

//szczegoly.php
<?php
echo "<p>{$_GET['nazwah']}</p>";
?>

What's wrong?

Thanks.
Leszek

[David Haynes]

Leszek wrote:

Hi.

I want to send a variable to my script using url.
I don't know why but echo in "szczegoly.php" display nothing...

// strona1.php
<A HREF=\"./szczegoly.php?nazwah=$nazwa_hotelu\">$nazwa_hotelu </A>

//szczegoly.php
<?php
echo "<p>{$_GET['nazwah']}</p>";
?>

What's wrong?

Thanks.
Leszek

Simple things first:
If you change szczegoly.php to the following:

<?php
echo "GET SET<br>\n";
echo "<pre>\n";
print_r($_GET);
echo "</pre>\n";
?>

what do you get?

[Leszek]

Right. I changed like you said.

This is what i'm getting
GET SET
Array
(
)
Does it mean that $_GET is empty?
So,
<A HREF=\"./szczegoly.php?nazwah=$nazwa_hotelu\">$nazwa_hotelu </A>
doesn't send nazwah to $_GET??

[David Haynes]

Leszek wrote:

Right. I changed like you said.

This is what i'm getting
GET SET
Array
(
)
Does it mean that $_GET is empty?
So,
<A HREF=\"./szczegoly.php?nazwah=$nazwa_hotelu\">$nazwa_hotelu </A>
doesn't send nazwah to $_GET??

I does indeed mean that $_GET is empty.
So, what web server are you using to serve up the pages?
I am suspicious about the './' prefix. Why is it there?
Also, I think you need to adjust the line to read:

<A HREF="szczegoly.php?nazwah=<?php echo $nazwa_hotelu;?>">$nazwa_hotelu</A>

-david-

[Leszek]

So, what web server are you using to serve up the pages?
I am suspicious about the './' prefix. Why is it there?
Also, I think you need to adjust the line to read:

<A HREF="szczegoly.php?nazwah=<?php echo
$nazwa_hotelu;?>">$nazwa_hotelu</A>

-david-

Whole line looks like this:
echo "<b><tr><td align=\"left\"><b><A
HREF=\"http://localhost/boin/Robocza/szczegoly.php?nazwah=$nazwa_hotelu\">$nazwa_hotelu </A></b></td>";

but still
echo {$_GET['nazwah']};
shows nothing

[Leszek]

<?php
echo "<p>{$_GET['nazwah']}</p>";
?>
gives
Array
(
[nazwah] => ALEXANDER
)
so now if i want to echo this value - can it be:echo {$_GET['nazwah']};
??ThanksLeszek

[David Haynes]

Leszek wrote:

<?php
echo "<p>{$_GET['nazwah']}</p>";
?>
gives
Array
(
[nazwah] => ALEXANDER
)
so now if i want to echo this value - can it be:echo {$_GET['nazwah']};
??ThanksLeszek

If you want to echo it then you can use:

echo $_GET['nazwah']."<br>\n";
or
printf('%s<br>\n', $_GET['nazwah']);

If you want to use set some default value if it is not set, you can do
something like:

$my_value = isset($_GET['nazwah']) ? $_GET['nazwah'] : 'default value';

-david-

[Leszek]

Works great:))

Thanks.
Leszek