LESSON4-PHP&MYSQL Flashcards
is a crucial aspect of web development, especially when dealing with sensitive user data or restricted access areas.
User Authentication
One of the simplest methods of implementing user authentication in PHP
Basic Username and Password
In PHP scripting, user authentication is typically implemented to
verify the identity of users attempting to access certain parts of a website or web application. This process involves _________, such as usernames and passwords, against stored records in a database.
validating user credentials
allow the execution of different code blocks based on specified conditions using if, else if, and else statements.
Conditional Statements
PHP supports various operators for performing arithmetic, assignment, comparison, logical, and string operations.
Expression and Operators
are used to store data values in PHP
Variables
Data Types
integers
floats
strings
booleans
arrays
objects
such as for, while, and do-while loops, allow the execution of a block of code repeatedly based on a condition.
Iteration Statements
allow the execution of different blocks of code based on the value of a variable or expression.
Switch Statements
in PHP are blocks of code that can be reused throughout your script. They help in organizing code, improving readability, and reducing redundancy.
Functions
in PHP are versatile data structures that can store multiple values in a single variable.
Arrays
PHP supports this types of arrays
indexed arrays, associative arrays, and multidimensional arrays
in PHP are instances of classes. They encapsulate data and behavior into a single entity, providing a way to model real-world entities.
Objects
are superglobal arrays in PHP used to collect form data submitted with the GET and POST methods respectively.
$_POST and $_GET
used to request data from a specified resource
GET
