PHP Ch 1 MidTerm
What value do the print statement statement return if it is successful?
1 It will return a 0 if unsuccessful. Remember echo will not return any value if successful or not.
What is the short PHP script delimiter?
<? ?> Note these cannot be used with XML documents, you must use <?php ?> script delimiters
What is the definition for the term "function" ?
A subroutine (or individual statements grouped into a logical unit) that performs a specific task.
What does CGI standfor?
Common Gateway Interface
You cannot use HTML formatting elements as part of the echo or print statements. True or False
False You can use the HTML elements to format the output of echo or print statements
What does PHP stand for?
Hypertext Preprocessor
Why should you avoid using the .php extension if the document contains only HTML code?
If the document has an extension of .php it will be sent to the scripting enging on the server. If it does not contain any PHP code, it causes unnecessary overhead on the server
Define the term "embedded language" as it applies to PHP
JavaScript and PHP are both referred to as embedded languages because: -code for both languages is embedded within a HTML Web page
What is a literal string?
Text that is contained within double or single quotes.
Why do you not see any PHP code when you view the source code of a PHP page int he browser?
The PHP code is never sent back to a client's Web broswer; only the resulting Web page that is generated from the PHP code and HTML elements found in the PHP code are returned to the client.
What is a programming language construct?
These are built in features of the programming language. Example: echo and print statements
What is the reason to include echo or print statements in your code block?
To include the results of a PHP script within a Web page that is returned to a client.
PHP, along with other programming languages, including C++ and Java, requires you to end all statements with semicolon. True or False
True Note the primary purpose of the semicolon is to identify the end of the statement, NOT the end of the line
To execute a PHP function, you must first invoke, or call, it from somewhere in your script. True or False
True The statement that calls a function is referred to as a function call and consists of the function name followed by any arguments or actual parameteres in parentheses and separated by commas.
What is the standard for exchanging data on the Internet?
XML
Does the PHP scripting enging ignore white space within the PHP code blocks? Yes or No
Yes
Does PHP contain any built in functions? Yes or No
Yes PHP includes numerous built-in functions that perform various types of tasks
Is the following standard PHP script deliminator: <?php ?> Yes or No
Yes Standard script deliminators are guaranteed to be available on any Web server that supports PHP. Also the only method that is completely compliant with XML
Can you nest PHP script delimeters within HTML paragraph elements? Yes or No
Yes page 5 The paragraph element forces the output from the script delimeters to render on a separate line.
