PHP for Beginners to Inventory POS Sales Project - AdminLTE

Explain how PHP variables work: start with a dollar sign, names begin with a letter or underscore, may contain letters, numbers, and underscores, and are case sensitive; they store data.

Learn how to declare variables and comments in PHP, explore eight data types (string, integer, float, boolean, array, object, resource, null), and print variables and array elements.

Learn to use php string functions such as strlen, str_word_count, strrev, strpos, and str_replace to manipulate text in inventory pos projects.

Explore conditional statements in PHP, including if, else, and else if, with practical examples that evaluate conditions, compare values, and display outcomes like voting eligibility.

Learn how PHP switch statements route actions by matching a color variable to case labels, using break, and default when no match is found, with practical examples.

Learn PHP operators across arithmetic, assignment, and comparison groups, plus increment/decrement, logical, and string operators. See examples with variables demonstrating addition, subtraction, multiplication, division, modulus, and a new comparison operator.

Explore PHP operators, including assignment, increment and decrement, comparison, logical, not, string concatenation and concatenation assignment, the spaceship operator, and related examples that print results in the browser.

Explore PHP functions, including built-in and user-defined, with syntax, arguments, default values, and returning values. Learn to define, call, and reuse functions for modular, reusable code.

Explore PHP indexed arrays with numeric indices, declare them with the array keyword, and access elements by index using print_r or var_dump, as shown with a products array.

Learn how to define PHP associative arrays with named keys and values, print prices for products, and compare them to indexed arrays to manage inventory data.

Explore PHP multidimensional arrays by building and accessing nested arrays for products with purchase price, sale price, and category, including both indexed and associative structures.

Explore PHP loops, focusing on while and do-while constructs, with practical examples showing conditions, increments, and execution flow; previews upcoming for and foreach loops.

Explore for and foreach loops in PHP, including syntax with initialization, condition, and increment, and learn to traverse numeric and associative arrays while printing values.

Explore how the get and post methods in PHP transfer form data using $_GET and $_POST. Compare get versus post, noting URL visibility and data security, with basic form examples.

Learn to handle PHP form submissions with get and post methods, display post data on the same page, and protect password fields against undefined index using isset.

Master PHP's date function to format date and time, use format characters to customize output, and set time zones such as Asia/Calcutta to get the correct current time.

Explore how to use explode and implode in PHP to split strings into arrays and join arrays into strings, using separators, indexes, and debugging with print_r.

Explains include, include_once, require, and require_once in PHP; shows that include issues a warning and continues on error while require stops execution, and how once variants avoid multiple inclusions.

Learn to upload image files in PHP using a form with post, handle file attributes via $_FILES, and move uploads to an upload folder with move_uploaded_file, including basic size checks.

Learn to upload files in PHP by validating size and extension, using explode and end to detect extensions, and generating a unique file name.

Explore PHP sessions to store and pass data across pages by using session_start and $_SESSION variables. Learn to access, destroy, and unset session data in inventory and POS apps.

Discover what cookies are, how browsers store name-value cookies, how servers send them via HTTP headers, and how to set cookies in PHP for personalization.

Learn to set and manage cookies in php using setcookie, including name, value, expire, domain, and secure attributes, and track visits by updating content via $_COOKIE on localhost.

Learn to perform create, read, update, and delete operations on a database using prepared statements in PHP. Explore mysqli and PDO connections in an AdminLTE POS project.

Learn to insert data into a database with an insert query in a php form, capturing product name and price via post, validating input, and using a prepared statement.

Discover how to read data from a database in PHP: prepare and execute a select query, fetch results with a while loop, and display product id, name, and price.

Learn how to select data with PHP PDO, use fetch with numeric and associative arrays, and retrieve single or multiple records via fetch, fetchAll, and object-style access.

Fetch all data from database tables in PHP using the fetch all method, compare it with the while loop, and render results quickly in the browser.

build an html table in php to display product data from a database, including product name and price, with edit and delete buttons.

Demonstrate add, edit, and delete buttons in an inventory table with a PHP AdminLTE project, using prefilled inputs for editing product name and price to update records.

Learn to implement an update button in a PHP AdminLTE inventory app, validating inputs and using a prepared update query with bound parameters to modify product name and price.

Learn to implement a dynamic delete button in PHP that removes records from the database by executing a delete query driven by post data.