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PHP Basics

A test by Lawrence Badanai.

Test Questions

Question

Curly Braces in PHP are used to define:

Answers

Correct	Answer Text
	A block of code
	A piece of code in another language
	A comment

Question

The maximum length of a string held in a variable is ...

Answers

Correct	Answer Text
	Just under 4 Megabytes
	1024 bytes
	There is no practical limit
	10240 bytes

Question

PHP is available

Answers

Correct	Answer Text
	As part of a Sun product
	Open Source
	As part of a Microsoft product
	From Oracle

Question

Who do you need to contact to obtain a license if you want to use PHP?

Answers

Correct	Answer Text
	No-one; it's open source and there's no need to register
	You can buy a license at your local computer store
	licensing@php.net

Question

How does PHP interface to the web server?

Answers

Correct	Answer Text
	Via a JSP or Servlet
	Using ASP
	Using CGI (Common Gateway Interface)
	As a built in library / module

Question

Comments in your PHP

Answers

Correct	Answer Text
	Should be used, but sparsley - if you have a lot of them, they'll have a significant effect on the bandwidth of your server
	Should be avoided if at all possible, but you might occasionally use them during development to leave a reminder for yourself of work that's still to be done before your program gets released into a production environment.
	Should be used liberally to help anyone who has to read your program at a later date understand how it works

Question

what's the result of 1 + 2 * 3 + 4

Answers

Correct	Answer Text
	11
	15
	21

Question

Which of the following is not a valid variable name?

Answers

Correct	Answer Text
	$number-in-class
	$number_in_class
	$NumberInClass

Question

To access a form variable from the following PHP page (recent versions), you should

Answers

Correct	Answer Text
	Use a $ in front of the name of the field on the form
	Use a variable of the form $_REQUEST[xxxxx] where xxxxx is the name of the field
	call the getpost() function, and look up the value in the returned array
	Access it via $env("xxxxx") where xxxxx is the name of the field

Question

PHP statements are usually teminated by

Answers

Correct	Answer Text
	A full stop character
	A closing brace "}"
	A semicolon character

Question

In PHP, the word "bgcolor" is used as

Answers

Correct	Answer Text
	a special variable
	a function
	it has no special use
	an operator

Question

In PHP, the word "and" is used as?

Answers

Correct	Answer Text
	an operator
	a function
	it is reserved, but unused
	a special variable

Question

You'll use a loop in your PHP program

Answers

Correct	Answer Text
	To repeat a piece of code or HTML a number of times
	To slow down your response to the user so that he has time to read the answers that you're sending him
	To make the code look more complicated for security purposes

Question

PHP stands for Prety Hot Property

Answers

Correct	Answer Text
	True
	False

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