isEMPTY

[geraldjr30]

hi,

i have the following:

<?php
...
if(empty($_GET['SFT']) AND empty($_GET['fac']))
{
echo "one";
}
elseif(empty($_GET['SFT']) AND isset($_GET['fac']))
{
echo "two";
}
elseif(isset($_GET['SFT']) AND isset($_GET['fac']))
{
echo "three";
}
else
{
echo "four";
}
...

for some reason "three" is show for the following url:

http://localhost/REC.php?count=tuesday&fac=&SRG_GROUP=Charity&SFT=2nd%20Shift%20-%204PM-12AM

i think i need to add another else or something because seems like it should be displaying "four". i just need something to handle cases in which the fac is empty or no value, as seen in my url here.

thanks in advance,
geebee

[Dormilich]

for some reason "three" is show for the following url:
http://localhost/REC.php?count=tuesd...20-%204PM-12AM

which is totally correct, both values (fac & SFT) are set, thus fulfilling condition 3. that one of them doesn't have a value is no concern of isset().

you could simplify that by

isset($_GET['SFT'], $_GET['fac'])

i just need something to handle cases in which the fac is empty or no value, as seen in my url here.

!$_GET['fac'] && $_GET['SFT']

[geraldjr30]

how can i handle the "fac=" part?

[Dormilich]

how can i handle the "fac=" part?

what do you mean by that?

[geraldjr30]

would i handle it with ISNULL for cases like this?

[Dormilich]

either use empty($_GET['fac']) or !$_GET['fac']

[TheServant]

Can I recommend looking at the isset() function. It's good for $_POST and $_GET variables.

[Dormilich]

Can I recommend looking at the isset() function. It's good for $_POST and $_GET variables.

that's right to first check, whether the variable you want to use actually exists. nevertheless, isset() tells you nothing about the variable's value.

[geraldjr30]

is there such thing as NOT empty($_GET['fac'])?

[Markus]

is there such thing as NOT empty($_GET['fac'])?

empty() returns a boolean value (true or false) depending on the variable. You check if it's empty like so:

if( empty ($var) )
{
    ...
}

You can check if it's not empty by using the exclamation (!) symbol prior to the statement (this checks if a function returns false).

if( ! empty ($var) )
{
    ...
}

Hope this helps.

[geraldjr30]

thanks... that helps!!

[Markus]

thanks... that helps!!

No problamo.

See ya around,
Markus.