1. What string function would you use to determine the number 
of characters in a password that a user has entered?

strlen();

2. What string function would you use to determine if an essay 
keyed in a <textarea> form input fi eld exceeds the maximum 
number of words allowed?

str_word_count()

3. What two string functions could be used to convert the case 
of text strings to all uppercase or all lowercase letters?

strtoupper()
strtolower()

if($userInput == 'help'){
printhelp();
}