isset!!! nope not setting so

[burtybob]

I have a piece of code sayin

$staff1 = $_REQUEST['staff1']; // also tried with $_GET and $_POST but neither worked for me
if (isset($staff1)) {
echo "hello";
}

And i am not 'setting' the variable so why is it echoing the hello (i am going to turn the actual true statement into a usefull thing but i thought echoing something i would be able to see if it is working)

 

Please can anyone help as i have spent the last week looking thorugh this code to make sure nothing is passed to the variable to be able to set it.

[MmmVomit]

But you are setting the variable.  You are doing it in the preceding line.

[burtybob]

yh i know but there isnt anydata going into it maybe i should be using

 

if (empty(variable)){

execute code

}

 

?????

Thanks for the fast reply!

[snowman15]

yes thats correct, I think you are setting  the value to null which is actually setting the variable.

yet null is still an empty value.

 

i think?

[burtybob]

OOPs Programming lol!!!! (very bad pun)

 

Now i am checking to see if its empty and im using same code as before but instead of isset() im using empty () and even when its got data it still echos hello!!! any ideas?

I even tried manually giveing the variable a value in the code and still it echos!!!

 

Please?

 

Grr i even tell the code to echo if its empty and it actually echos a value!

[ingeva]

Why don't you echo the var itself and see what it contains?

 

$staff1 = $_REQUEST['staff1'];

echo $staff1;

 

You may also use

echo int($staff1);

 

etc.

 

[MmmVomit]

For debugging, try this.

 

<?php

$staff1 = $_REQUEST['staff1']; // also tried with $_GET and $_POST but neither worked for me
print_r($staff1);
if (isset($staff1)) {
echo "hello";
}

?>

 

[burtybob]

Why don't you echo the var itself and see what it contains?

 

$staff1 = $_REQUEST['staff1'];

echo $staff1;

 

You may also use

echo int($staff1);

 

etc.

 

If you read my post i did try this also mmmvomit i have tried the isset() method and as someone pointed out the variable does set! Even if it is $staff='' still becomes 'set'

[MmmVomit]

You missed the line of code I added.

 

print_r($staff1);

[burtybob]

You missed the line of code I added.

 

print_r($staff1);

 

Sorry you are right i did miss that piece of code and it now doesnt echo when the variable isnt set, thank you can i please ask what the print_r actually does because in the php manual it says its to do with arrays is this true?

 

Thank you!