hi can someone tell me what does this mean?
if(isset($_POST["userid"])){
techyworld 0 Junior Poster in Training
davy_yg 2 Posting Whiz
"isset() will return FALSE if testing a variable that has been set to NULL" or if $_POST["userid"] has no value.
James_Smith 0 Newbie Poster
It's right as said by davy_yg,
if(isset($_POST["userid"])){
The above code is used to determine if a variable is set and is not NULL.
EmilyJohnson 0 Junior Poster in Training
if(isset($_POST["userid"])){
this is used to check whether userid variable is used or not, and whether it has some value or not.
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