empty variable check

[mistypotato]

Hello,

 

Should this work?....

 

if ($ncvx)

$ncustid = 0;

else

$ncustid = $_GET['ncvx'];

 

thx

[cdog5000]

Hello,

 

Should this work?....

 

if ($ncvx)

$ncustid = 0;

else

$ncustid = $_GET['ncvx'];

 

thanks

if (!$ncvx)
$ncustid = 0;
else
$ncustid = $_GET['ncvx'];

try that

[monkeypaw201]

No, try this:

 

<?php
if (isset($_GET['ncvx']))
{
$ncustid = 0;
}else{
$ncustid = $_GET['ncvx'];
}
?>

I assume, you want to check if its passed in the URL?

[mistypotato]

Thanks for the kwik help cdog & monkeypaw !

 

cdog, i get an error with your code  :-(

 

Monkeypaw, with your code, the error is gone, but the value does not seem to be returned?

 

any suggestions ?

 

thx !

 

 

[monkeypaw201]

Thanks for the kwik help cdog & monkeypaw !

 

cdog, i get an error with your code  :-(

 

Monkeypaw, with your code, the error is gone, but the value does not seem to be returned?

 

any suggestions ?

 

thanks !

 

 

 

I assume, you want to check if the variable ncvx is passed in the URL?

 

(ie http://my.domain.com/page.php?ncvx=something)

 

if so, try this:

<?php
if(isset($_GET['ncvx']))
{
$ncustid = 0;
}else{
$ncustid = $_GET['ncvx'];
}
?>

 

otherwise, please elaborate..

[mistypotato]

Hi monkeypaw,

 

yes, you are correct.  I want to check for the existence of the variable in the URL just as you describe.

 

Problem is, the function you wrote for some reason does not return the value if it does exist in the URL unless I add this after your code like this... which defeats the purpose of course :-)

 

if (isset($_GET['ncvx']))

{

$ncustid = 0;

}else{

$ncustid = $_GET['ncvx'];

}

$ncustid = $_GET['ncvx'];

 

 

it's as though the first part works correctly but it ignores the section AFTER the else even if there IS a value in the URL

[genericnumber1]

I want to get in on this!

 

<?php
$ncustid = (empty($_GET['ncvx'])) ? 0 : $_GET['ncvx'];
?>

[monkeypaw201]

Hi monkeypaw,

 

yes, you are correct.  I want to check for the existence of the variable in the URL just as you describe.

 

Problem is, the function you wrote for some reason does not return the value if it does exist in the URL unless I add this after your code like this... which defeats the purpose of course :-)

 

if (isset($_GET['ncvx']))

{

$ncustid = 0;

}else{

$ncustid = $_GET['ncvx'];

}

$ncustid = $_GET['ncvx'];

 

 

it's as though the first part works correctly but it ignores the section AFTER the else even if there IS a value in the URL

 

oops, my mistake! i reversed things..

 

this should work:

 

if (isset($_GET['ncvx']))
{
$ncustid = $_GET['ncvx'];
}else{
$ncustid = 0;
}

[tibberous]

<?php

$ncustid = ($_GET['ncvx']) ? 0 : $_GET['ncvx'];

?>

 

Just as good.

 

I hate people who use isset and empty.

[mistypotato]

OMG Generic !

 

That worked perfectly !!!!

 

 

MANY MANY thanks to all of you you're great

[genericnumber1]

Pft tibberous, what if $_GET['ncvx'] is the string 'false'?

 

EDIT: example...

<?php
$var = 'false';

echo isset($var) == true; // true
echo !empty($var) == true; // true
echo $var == true; // false
?>

 

There IS an advantage to using empty() or isset() over not using anything.

[monkeypaw201]

<?php

$ncustid = ($_GET['ncvx']) ? 0 : $_GET['ncvx'];

?>

 

Just as good.

 

I hate people who use isset and empty.

 

Somtimes, the simplest ways are the best (BTW don't diss just because you code differently)

[mistypotato]

Really, thank you all for the fast help !

 

I had no idea I could get this resolved this evening...so quickly

 

You've all made my night and especially you Generic.

 

You guys really know this stuff  ;-)

[genericnumber1]

If only all questions could be answered so easily.

[tibberous]

Pft tibberous, what if $_GET['ncvx'] is the string 'false'?

 

EDIT: example...

<?php
$var = 'false';

echo isset($var) == true; // true
echo !empty($var) == true; // true
echo $var == true; // false
?>

 

There IS an advantage to using empty() or isset() over not using anything.

 

I didn't say it was the same, just that it was 'just as good'. How does someone use the string 'false'?

[genericnumber1]

I didn't say it was the same, just that it was 'just as good'. How does someone use the string 'false'?

a true/false questionaire? o.O

[tibberous]

Then your way would have 'false'==true, it would screw it up =)

[genericnumber1]

no, my way is empty()

 

!empty('false') == true evaluates to

true == true evaluates to true

 

your way is

 

'false' == true evaluates to

false == true evaluates to false

 

you could rectify by doing $str === true for everything, but that's even worse than using empty()

 

edit: spelling

 

I'm just saying using $str instead of !empty($str) does not work 100% of the time, plus it looks messier (to me)