Correct me if I'm wrong. I saw many people write condition header as this format.
if(isset($var) && $var!=""){}
Basically it just checking if $var isn't null value right? In my understanding this would be enough.
if($var){}
Am I missing something? Did my method unreliable? My colleague already pointed out that I should use the first one. Sometime I just lazy to write so I just want to make it simple.
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