checking for multiple variables

[Anon]

If I want to use the if(isset()) function to check for more than one variable, what would that syntax be?

I know that for one it is:

if(isset($var1)){
do something
}

any help is appreciated.

[cordex]

if(isset($var1) && isset($var2) && isset($var3)){
do something
}

That what you mean?

[Anon]

not quite... that would require all three being set, I need to check to see if one of the three is set, so it's more if var1 or var2 or var3 then...

[Anon]

if(isset($var1) || isset($var2) || isset($var3)){
do something...
}