hi can someone tell me what does this mean?
if(isset($_POST["userid"])){
techyworld
0
Junior Poster in Training
Recommended Answers
Jump to Post"isset() will return FALSE if testing a variable that has been set to NULL" or if $_POST["userid"] has no value.
All 3 Replies
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.
Be a part of the DaniWeb community
We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.