[SOLVED] is this kind of an elseif statement ok

[maztrin]

hi i am having a little trouble with an if else

statement

 

basically in my forum type application

 

is this sort of format with an elseif statement ok?

as i keep opening and closing the the php statements

 

 

basically depending on what state $t is at will determine whether a form or message is presented to the user.

 

 
$t = $_GET['topic'];

if ($t == 0)
{	
?>
//a html form goes here
<?php
} #end of if 

elseif ($t == 'c')
{
//code
?>
//A MESSAGE IS DISPLAYED HERE INSTEAD OF A FORM
<?php
}
else
{
//JUST A DEFAULT MSG OR SOMETHING
}
?>
end of html code and page

 

what's happening at the moment is that depending on the status of '$t' it is showing only the first if statement

 

any help is appreciated thanks

 

MazTrin 

[keeps21]

Looks fine to me 

[shadiadiph]

try it with two if statements if the first doesnt return anything the second will try changing elseif for if

 

looks fine to me too but try what i suggested

 

[Mark Baker]

Your first test is comparing $t with a numeric value

If the value of $t is a string, PHP will convert it to a numeric (integer) so that it can do that comparison.

If $t contains plain text, this conversion will result in it being seen as a numeric 0 by the comparison...

therefore, the first if test is comparing 0 with 0, which matches

 

To demonstrate how PHP tries doing this conversion

try doing

 

echo 0 + "Hello";

echo 1 + "Hello";

echo 0 + "3rd Test";

 

To resolve this, you need to make the first test a string to string test:

if ($t == '0')

so that there is no need for PHP to try and convert $t to a numeric value

[shadiadiph]

you are sending topic accross ok? in the url? does it say something.php?topic=c or topic=

 

 

[maztrin]

ah well i have tried this

try it with two if statements if the first doesnt return anything the second will try changing elseif for if

 

looks fine to me too but try what i suggested

 

 

but it didn't work at all so i tried testing the first if statement and commented out the rest.

and i noticed that it didn't even work...so its probably not the elseif statement at all.

 

so do you think that maybe the get isn't getting the topic

 

my adapted code:

<?php

$t = $_GET['topic'];

if ($t == '0') 
{	
?>
//the code that i want it do display
<?php
} 
else
{
echo 'something went so wrong';
}

when i use this it goes straight to the else statement.

[samshel]

r u sending topic variable via GET i.e. URL ?

[premiso]

Most likely, if it does not work, then no. The get is not getting the id.

 

<?php

$t = isset($_GET['topic'])?(int)$_GET['topic']:null;

if (isset($t) {
    echo "{$t} was passed in, yay!";
}else {
    echo "Get data was not appened to the url like http://yoursite.com/script.php?t=2";
}
?>

 

Give that a try and see what happens.

[Mark Baker]

Do I need to repeat what I said in Reply #3?

[daviddth]

Have you tried echoing the value of $t in a few places. i.e.

 

<?php

 

$t = $_GET['topic'];

echo $t;

 

and later...

 

if ($t == '0')

{

echo $t;

}

 

 

I have exactly the same setup, except I dont close the php section and throw in html code - I just converted the html into php echo commands, so that way each if statement has a solid section of php between the { and } - I just prefer it that way lol

 

[samshel]

<?php
echo "GET....";
var_dump($_GET);
echo "POST....";
var_dump($_POST);

 

this will show u if variables are passed properly to the page or not..

[shadiadiph]

your link to this page must be <a href="pagename.php?topic=$srt"> or <a href="pagename.php?topic=0"> or <a href="pagename.php?topic=c">  for it to be able to get the value of topic