17 docs tagged with "php"

Build a complete Notes application with registration, login, CRUD operations, routing, templates, and database integration using concepts from the entire guide.

Dependency management with Composer, installing packages, PSR-4 autoloading, semantic versioning, and security best practices.

Making decisions with if/else/elseif, switch and match, looping with while, do-while, for and foreach, and combining control structures in real programs.

PHP error levels, configuring error reporting, exceptions with try/catch/finally, custom exception classes, and debugging techniques including Xdebug.

Defining and calling functions, parameters and return values, type declarations, variable scope, closures, arrow functions, and built-in PHP functions.

What PHP is, how the web works, installing PHP on every major operating system, writing your first script, and understanding the PHP request lifecycle.

PHP 8.0 through 8.4 highlights including named arguments, enums, readonly properties, property hooks, and choosing your PHP version.

Classes and objects, properties and methods, constructors, visibility modifiers, getters and setters, static members, class constants, and a practical Product and ShoppingCart example.

Inheritance, abstract classes, interfaces, traits, namespaces, autoloading, and building flexible object-oriented systems.

Learn how PHP combines values with operators -- arithmetic, assignment, comparison, logical, and string concatenation. Understand loose vs strict comparison and operator precedence.

Six hands-on project ideas -- from beginner to advanced -- to reinforce everything you learned in the PHP Beginners Guide.

HTTP statelessness, cookies with setcookie(), PHP sessions, flash messages, and building a secure login/logout system.

Master PHP strings -- concatenation, heredoc, common functions, and multibyte handling. Then dive into indexed and associative arrays, looping, essential functions, and practical examples.

Declaring variables with the dollar sign, understanding PHP's data types, working with constants, type juggling, and inspecting values with var_dump.

Relational databases, PDO, CRUD operations, prepared statements, transactions, and building a simple task manager.

Reading and writing files, CSV and JSON, directory operations, file uploads, path functions, and security best practices.

HTML forms, GET and POST requests, superglobals, input validation, and building a contact form.