IF
CONTAINS ()...
Explanation
Evaluates true or false, whether or not a string contains the specified value.
Usage:
<!--if contains($test,$what)--> display this <!--end if-->
Example(s)
<!--if contains($telephone,937)--> The telephone number does contain 937 <!--end if-->
Checks the value of $telephone and if the variable contains ‘937’ then it displays the message to the screen