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-   -   not to display string if variable is null. (https://vborg.vbsupport.ru/showthread.php?t=287559)

demo7up 09-07-2012 01:05 PM
not to display string if variable is null.
 
I need help making something like this.


so for example
Code:

if ($number == NULL) {
echo 'there is a $number';
}
else {
echo 'There is no value';
}

kh99 09-07-2012 01:13 PM
If the variable is set to null when there is no value, then I think you could check it by using $number === null (three '='). If the variable is not set at all when there's no number then it won't be equal to null so you'd have to use isset($number) to see if it's set.

demo7up 09-07-2012 01:14 PM
i think i got it

i think i figured it out
Is this correct?


Code:
if (isset($number))
{
  echo "Variable is set";
} 
else
{
echo "its not set";
}

kh99 09-07-2012 01:16 PM
Yeah, that will work if the variable isn't set at all when there's no number.

demo7up 09-07-2012 01:24 PM
Quote:
Originally Posted by kh99 (Post 2363355)
Yeah, that will work if the variable isn't set at all when there's no number.
Thanks for your help man.. Its for a vb plugin im coding n00b coder.. Very much appreciated.

--------------- Added [DATE]1347032342[/DATE] at [TIME]1347032342[/TIME] ---------------

one more question...

how would i go about adding the if/else in this
Code:
$template_hook['forumhome_above_forums'] .= "".
I think i got it i will post back if it worked

--------------- Added [DATE]1347034575[/DATE] at [TIME]1347034575[/TIME] ---------------

nope i tried this ty u guys for you patience with me..

Code:
$template_hook['forumhome_above_forums'] .= "".if (isset($shirtid)) {
echo $itemshirt;
}
else
{
echo "put a shirt on";
}."

</div>"; }
--------------- Added [DATE]1347036110[/DATE] at [TIME]1347036110[/TIME] ---------------

okay so i give up here is my plugin Whats wrong here????

Code:
$shirtid = "". $decode[items][shirt][id] ."";
$itemshirt = "<a href=\"http://www.wowhead.com/item=".$shirtid."\" rel=\"item=".$shirtid."\"><img class=\"wowequipimg\" src=\"".$bliziconurl."/".$shirticon.".jpg\"></a>";

if (isset($shirtid)) {
$template_hook['forumhome_above_forums'] .= "". $itemshirt ."";
}
else
{
$template_hook['forumhome_above_forums'] .= "put a shirt on";
}
--------------- Added [DATE]1347036382[/DATE] at [TIME]1347036382[/TIME] ---------------

Getting Close i can feel it...

im not getting any errors but

This works! I tested
Code:
if (isset($shirtid)) {
$template_hook['forumhome_above_forums'] .= "". $itemshirt ."";
}
This isnt though
Code:
else
{
$template_hook['forumhome_above_forums'] .= "put a shirt on";
}
I just get an X missing image icon instead of displaying the above msg

--------------- Added [DATE]1347036765[/DATE] at [TIME]1347036765[/TIME] ---------------

End Result Which works!!!!

Code:
if ($shirtid == NULL) {
$template_hook['forumhome_above_forums'] .= "". $missingshirt ."";
}
else
{
$template_hook['forumhome_above_forums'] .= "". $itemshirt ."";
}


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