.=

[ahs10]

do i have to/should i declare a variable before using .= to add onto it?

 

for example....

$myVar = '';  // is this line necessary?
while ($row = mysql_fetch_array($result)) {
    $myVar .= $row['sqlData'];
}

 

 

[revraz]

Comment it and see what happens.

[Lashiec]

You'll get a notice that $myVar isn't defined if you try to $myVar .= "whatever"; without doing something like $myVar = null;. It still should work, but coding so you don't get notices is better.

 

If you have all warning/notices turned on that is.

[ahs10]

thank you lashiec.

 

i'm gonna jump on box right quick too.  don't reply to a post and tell someone to try it to see if it works, that defeats one purpose of a message board, a storage unit of problems and answers.  this instance in particular, "trying it to see if it works" wouldn't have answered my question.... "do i have to/SHOULD I....." as explained by lashiec's answer.

 

thanks again!

[revraz]

Or don't ask a question that you can simply just try and see the results for yourself.

 

don't reply to a post and tell someone to try it to see if it works, that defeats one purpose of a message board, a storage unit of problems and answers.  this instance in particular, "trying it to see if it works" wouldn't have answered my question.... "do i have to/SHOULD I....." as explained by lashiec's answer.

 

thanks again!

[aebstract]

Yeah he is kinda right about how you could have easily removed the $myVar = ''; and seen if it worked and what it did, without it there..

[sasa]

it's good practis to declare variable before use it