chapter 1 Flashcards
clients use
web browsers to request web pages from web server
Lan
connects computers that are near each other
http sends a request to
the webserver that includes name of requested file
a static webpage is a
page that is the same each time it is retrieved
a dynamic webpage is generated by a
server side program or script
HTTP request that lead to php scripts are
processed by PHP interpreter
HTML is
the language that defines the structure and contents of a webpage
==
equal
!=
not equal
<=
less than or equal
===
identical
!==
not identical
&&, ! and || are all
logical operators
php provides six data types including
integer, double,boolean and string
to concatenate two strings you use
. the concatenation operator
to get data from a form theat has been submitted you use
either $_GET or $_POST
if statements provide
the logic of an application
while loop excutes a
block of code as long as the condition is TRUE
you can use what to check if values exist
filter_input()
a relational database
consists of tables in rows and columns
the tables in a relational database are related through
foreign keys
each colmun in a database is defined with a
data type
the SELECT statement in sql
returns data from two or more tables
an inner join
returns a set of that includes data only