Embed function in if statement

Shell Programming and Scripting
1

Hey everyone,
I am just trying to figure out how to embed a function in an if statement.
I have the following test script so far:

PRIMARY=192.168.1.2
SECONDARY=192.168.1.1

function checkAlive {
        ping -c 1 -q $1
}

if [ checkAlive $PRIMARY -eq 0 ]
        then
                echo "equaled 0"
fi

This doesn't seem to work. Does anyone have any advice?

2 
if checkAlive $PRIMARY; then
   echo "equaled 0"
fi