Php value passing

PHP
1

hi,
i am having trouble echoing from posted page, in the url it shows the send id but it gives me error for this query

$_GET['$songs_set["id"]'];

and i get this error
Undefined index: $songs_set[“id”]

2

What does the url look like?
My guess is it should be:

$_GET['id'];
3

I’m guessing actually you’ve gotten your arrays backwards.

Were you trying to do $songs_set[$_GET[‘id’]] ?

4

single.php?song =1

5

yes

6 
single.php?song =1

I hope there is no space between song and =

7

there is and i was wondering if that is the reason
edit : i fixed the gap

8

The undefined index error is because you had things mixed up like StarLion said.
Change your code like he told you, and try again.

9

i still get the error

$_REQUEST['id'];
$song = $_REQUEST["id"];

Notice: Undefined index: id

Notice: Undefined index: $songs_set[“id”]

10

Because the variable name isn’t ‘id’, but ‘song’. You called it that way in the query string.

single.php?key=value

$_GET[‘key’] contains value

single.php?song=1 (get rid of that space)

$_GET[‘song’] contains 1

11

i didn’t got any of it.:sick:

12

Let’s add some color:


single.php?[B][COLOR="Red"]key[/COLOR][/B]=[COLOR="DeepSkyBlue"][B]value[/B][/COLOR]

$_GET['[B][COLOR="Red"]key[/COLOR][/B]'] contains [B][COLOR="deepskyblue"]value[/COLOR][/B]

single.php?[B][COLOR="Red"]song[/COLOR][/B]=[B][COLOR="deepskyblue"]1[/COLOR][/B] 

$_GET['[B][COLOR="Red"]song[/COLOR][/B]'] contains [B][COLOR="deepskyblue"]1[/COLOR][/B]

I can’t explain it any clearer than that.
Do a print_r($_GET); in your code to see the contents of $_GET.

13

i don’t know what is wrong. i am reading a tut too it says the same about passing and getting value, this is page 1

<a href=\\"single.php?song=key{$songs_set["id"]}\\">".$songs_set["title"]."</a>

this is page 2

$song = $_REQUEST['id'];

and i m echoing on page 2

echo $song;
14

here is my code

<form action="single.php" method="post">
                                <div class="songslist">
                                    <table class="songs" width="1020" border="0" cellpadding="0" cellspacing="0">
                                    <tr>
                                        <th width="281">Artist</th>
                                        <th width="281">Title</th>
                                        <th width="204">Length</th>
                                        <th width="204">Genre</th>
                                        <th width="50">Ratings</th>
                                    </tr>
                                    </table>
                                    <table class="songs" width="1020" border="0" cellpadding="0" cellspacing="0">
                                    <tr>
                                    <?php
                                    $songs = mysql_query("SELECT * FROM songs LIMIT 10");
                                    if($songs){
                                        echo mysql_error();
                                    }
                                    while($songs_set = mysql_fetch_array($songs)){
                                        echo "<tr>
                                               <td width=\\"281\\">".$songs_set["artist"]."</td>"
                                            . "<td width=\\"281\\"><a href=\\"single.php?song={$songs_set["id"]}\\">".$songs_set["title"]."</a></td>"
                                            . "<td width=\\"204\\">".$songs_set["length"]."</td>"
                                            . "<td width=\\"204\\">".$songs_set["genre"]."</td>"
                                            . "<td width=\\"50\\">".$songs_set["rating"]."</td><tr>";
                                    }
                                    ?>
                                    </table>
                     </div>
                         </form>

and here is the single page

<?php
$song = $_REQUEST['id'];
echo "$song";
?>

now can u guide me where am i going wrong?

15

single.php?song=1

$_REQUEST[‘id’];

This is where you’re going wrong.
Like I told you, do a print_r($_GET); in your code (or a print_r($_REQUEST); ), and you’ll see what exactly is sent to single.php

16

its a empty Array. i still don’t understand what i m going wrong

17

Change

song={$songs_set["id"]}

in

song={$songs_set['id']}

That line should have given you an error though.

18

u told me to remove double quotes. but it didn’t solve the undefined index error on next page

19

Did you change id to song?

20

[QUOTE=guido2004;4881072]Did you change id to song?[/QUOTE} still undefined index error