Sams Teach Yourself PHP in 24 Hours, Third Edition

Workshop

Quiz

1:	Which of the following variable names is not valid? $a_value_submitted_by_a_user $666666xyz $xyz666666 $_____counter_____ $the first $file-name
2:	What will the following code fragment output? $num = 33; (boolean) $num; print $num;
3:	What will the following statement output? print gettype("4");
4:	What will be the output from the following code fragment? $test_val = 5.4566; settype( $test_val, "integer" ); print $test_val;
5:	Which of the following statements does not contain an expression? 4; gettype(44); 5/12;
6:	Which of the statements in question 5 contains an operator?
7:	What value will the following expression return, and what data type will the returned value be? 5 < 2

Answers

A1:	The variable name ...