PHP
What symbol is used to mean "not" in PHP? This symbol is used in both logical and comparison operators to mean "not".
!
What is the JavaScript symbolic equivalent for what the "." is doing on line 4 of the following code? Which symbol is used in JavaScript to perform the same operation? 1 <?php 2 $fiddle = "pinkie"; 3 $waffle = "tickle"; 4 $flarg = $waffle . $fiddle; 5 ?>
+
What is the one symbol that will work for commenting code in JavaScript, PHP, and CSS, but not in HTML?
//
Legal variable names: (4)
1. The first character must be a dollar sign ($) 2. Must be at least ONE character in length 3. The first character after the dollar sign can be A LETTER or an UNDERSCORE (_), and character after that can be a letter, an underscore, or a number 4. Spaces and special character other that _ and $ are not allowed in any part of a variable **Should keep variables in all lowercase and separate multi-word variable names with underscore
echo
A PHP command that is used to output content, such as pure text or HTML code
$_POST
A built-in PHP array that stores data that has been submitted using the "post" method Holds form data
HTML
A markup language used to describe the structure of web page content that is viewed in a web browser
superglobal
A name used to describe built-in PHP variables that are accessible to all scripts
PHP
A programming language used to create scripts that run on a web server A server-side scripting language that lets you manipulate web page content on the server before a page is delivered to the client browser
web form
A series of input fields on a web page that is used to get information from users
web server
A software application for delivering web pages that acts as the SERVER SIDE of web communications
browser
A software application for viewing and interacting with web pages that acts as the CLIENT SIDE of web communications
variable
A storage location or a CONTAINER in a PHP script that has its own UNIQUE name and data type Must start with a dollar sign.
array
A type of PHP data storage that allows you to store multiple pieces of information in a single place Each value has an index that you can use to access it.
quotes
All strings must be enclosed within these
HTML acts on the...
CLIENT; html web pages come from a web brower and its filled out and processed entirely on the user's web browser Client isnt equipped to deliver form data
True or false: you can generate HTML & JavaScript on the fly using PHP to run in the browser, and you can generate PHP on the fly using JavaScript which will run on the server.
FALSE
server-side
Interpreted by a web server, not a client machine
client-side
Interpreted solely by the client web browser
When choosing how to enclose your strings in PHP, use a pair of single quotes for ________ and a pair of double quotes for __________.
Literal strings, variable interpolation
What does PHP stand for?
Originally stood for: Personal Home Pages Changed to: PHP: Hypertext Processor
PHP must live on a ......?
SERVER, PHP scripts and web pages that rely on the scripts MUST BE PLACED ON A REAL WEB SERVER, as opposed to just opening a script directly from a local file system
PHP acts on the...
SERVER; runs on the server to process the form data
which technology is closest to php in its function?
Sun's Java Server Pages
what happens to the PHP code after it is executed on the server?
The php code is processed and then it is stripped from the page before the HTML is returned to the browser.
<?php?>
These tags are used to enclose PHP code so that the web server knows to process it and run it
How do you concatenate multiple strings together?
To create a new single string add period in between previous strings (.)
Escape characer
Used to represent characters in PHP code that are difficult to type or that might conflict with other code, such as \n (new lines)
Do all web pages originate on the server? Even just HTML pages?
Yes, all files for a web site are stored on the server, but they aren't all PROCESSED by the server
A form element's ACTION attribute connects...
a form to a PHP script, causing the script to run when the form is submitted
newline characters can only be escaped in ....
double-quoted strings
What is the name for the way php can interpret a variable inside a string? For example, echo "Hello my name is $name!"; What do we call this technique?
interpolation
Single-quoted strings are considered __________
raw text
Double-quoted strings are looking for________
variables