The ternary operator allows “If...Else...End if” control flow structure to be written in a single line. For example, consider the following statement:

If ($myAge<=$yourAge)    $greeting:="Hello, sir." Else    $greeting:="Hello, kid." End if

It can be re-written using ternary operator as follows:

$greeting:=$myAge<=$yourAge ? "Hello, sir." : "Hello, kid."

An additional condition can be chained to the above, for instance:

$greeting:=$myAge<$yourAge ? "Hello, sir." : $myAge>$yourAge ? "Hello, kid." : "Hello, peer."

This is the same as the following statement:

If ($myAge<$yourAge)    $greeting:="Hello, sir." Else    If ($myAge>$yourAge)      $greeting:="Hello, kid."    Else      $greeting:="Hello, peer."    End if End if

As demonstrated above, the ternary operator can be chained to condense multiple conditions into one line.