Questions

$1.$ Edit the following code to specify that $totl is a floating point number with five decimal places after the decimal point $($fill in the two placeholders $\_\_\_$ with proper code$).$

$$

printf $("$Total amount of order is $\_\_\_",\_\_\_\_\_)$;

$2.$ Edit the following PHP code to echo the value $6$ to the browser $($fill in the two placeholders $\_\_\_$ with proper code$).$

$$

$test $=$ "Hello Mama";

echo strpos$($$test, $"\_\_\_",\_\_\_)$;

$3.$Use the PHP require function to include the contents of the file reduce.php in your current script.

$4.$ Make a call to a PHP compute$()$ function by passing in the variable $variable with a value of $82.$

$$

$5.$Write function named winStat that accepts a parameter called condition and outputs the string Window open if condition is TRUE and Window closed otherwise;

$$

$6.$ Modify following PHP function to ensure that only the first echo statement is executed. Make your edit is as compact as possible, using the blank underline$\_\_\_\_\_$ as your guide.

$$ function testrtn$()\{$

$$ echo "This statement will be executed";

$\_\_\_\_\_$ ;

$$ echo "This statement should not be executed";

$\}$

$7.$ Edit the following PHP class definition to add a public attribute named attr$1.$

$$ class MClass

$\{$

$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$;

$\}$

$8.$ Define an object named $tiny that instantiates an instance of the class House, using no parameters and one command.

$$

$9.$Modify the following code to specify that the R class is a subclass of the Q class. $($fill in the placeholders $\_\_\_$ with proper code$).$

$$ class $\_\_\_\_\_\_\_\_\_\_\_$ ;

$10.$Define a PHP variable named $i that is a copy of object $obj of the same class with the same attribute values.

$11.$ Modify the following PHP code in such a way that you trigger the exception$-$handling mechanism using the myException class.

$\_\_\_$ new $\_\_\_($$msg$,$ $code$)$;

$$

$12.$ Modify the following PHP code such that it runs cleanly.

$\_\_\_\{$

$//$ do something, maybe throw some exceptions$$

$\}\_\_\_($Exception $e$)\{$

$//$ handle exception$$

$\}$

$$

$13.$Modify the following code to trap exceptions of the myException class and store the results in the variable $o$.$

$$ catch $(\_\_\_\_\_\_)$

$\{$

$//$ handle exception

$\}$

$14.$ Explain what the PHP built$-$in class Exception is used for and name at least two methods in it and provide examples of when each might be used and why.