Download Unsolved Multiple-Choice Questions - Quiz | CSCI 2910 and more Quizzes Computer Science in PDF only on Docsity! CSCI 2910 PHP Intro Quiz Name: ________________________________ Spring 2006 1. Each line of a PHP program must be terminated with the character: a.) / b.) > c.) # d.) < e.) ~ f.) . g.) ; h.) : 2. The HTML comment string <!-- also works in JavaScript in order to comment out scripts that might not be understood by older browsers. Why doesn’t PHP do this too? 3. Modify the JavaScript code shown below to be PHP code. value = 25; document.write ("25 divided by 2 is " + value/2 ); 4. When declaring a string in PHP, sequences of white space such as multiple spaces, tabs, and/or carriage returns are: a.) combined into a single space b.) remain in the string exactly as defined 5. The PHP concatenation character, i.e., the character used to join strings into a single string is: a.) + b.) & c.) ^ d.) ~ e.) – f.) . g.) : h.) > 6. Which output function, "print" or "echo", allows for multiple arguments separated by commas? 7. True or False: When declaring a float, the initial value must have a decimal point, but it may or may not have an exponent. 8. True or False: A PHP escape sequence can be used to display many characters not available on the English PC keyboard. 9. Which of the following initializes the constant E to 2.718? a.) declare("E", 2.718); b.) define("E", 2.718); c.) set("E", 2.718); d.) E = declare(2.718); e.) E = define(2.718); f.) E = set(2.718); 10. Assume an integer value is assigned to a float variable $_fval using the expression "$_fval = (float)3;" What value does $_fval contain after this expression executes? a.) null b.) 3.0 c.) 0 11. Assume a floating point value is assigned to an integer variable $_ival using the expression "$_ival = (int)3.6;" What value does $_ival contain after this expression executes? a.) null b.) 3.6 c.) 4 d.) 3 e.) 0 12. Assume a boolean value is assigned to an integer variable $_ival using the expression "$_ival = (int)true;" What value does $_ival contain after this expression executes? a.) null b.) true c.) 0 d.) 1
