PHP2008-11-23
Input Validation in PHP
One essential technique to protect your web site from users is input validation, which is an impressive term that doesn't mean much at all. The term simply means that you need to c
Read tutorialAdvertisement
THE TUTORIAL LIBRARY
All tutorials
All topicsJava 392PHP 151VB.net 120C++ 111C 110Interview 108JSP 87Javascript 83Linux 66python 56Ruby 51Struts 47J2ME 47macos 38Asp.net 36Office365 35Trends 33React-Native 33JDBC 31Android 31Certification 29Hibernate 26data-science 24JSF 19Csharp 18MySQL 17Cocoa 14Error 14Perl 13node.js 13AI 12EJB 12Java Beans 12Cloud 11WebServices 10Git 9Ajax 7HTML5 7iPhone 6Photoshop 5Reviews 5xml 5Apache 4SAP 3NoSQL 1ELKStack 1Azure 1
MySQL2008-11-23
What is SQL Injection
SQL Injection is a method in which an attacker inserts malicious code into queries that run on your database.
Read tutorialPHP2008-11-22
__autoload() METHOD in PHP
When writing object-oriented code, it is often customary to put each class in its own source file. The advantage of this is that it's much easier to find where a class is placed, a
Read tutorialPHP2008-11-22
__toString() METHOD in PHP
Unlike most other data types, printing the object's id will usually not be interesting to you. Also, objects often refer to data that should have print semantics—for example, it
Read tutorialPHP2008-11-22
Interfaces in PHP
Class inheritance enables you to describe a parent-child relationship between classes. For example, you might have a base class Shape from which both Square and Circle derive. Howe
Read tutorialPHP2008-11-22
instanceof OPERATOR in PHP
The instanceof operator was added as syntactic sugar instead of the already existing is_a() built-in function (which is now deprecated). Unlike the latter, instanceof is used like
Read tutorialAdvertisement
PHP2008-11-22
parent:: AND self:: in PHP
PHP supports two reserved class names that make it easier when writing OO applications. self:: refers to the current class and it is usually used to access static members, methods,
Read tutorialPHP2008-11-22
Polymorphism in PHP
The subject of polymorphism is probably the most important in OOP. Using classes and inheritance makes it easy to describe a real-life situation as opposed to just a collection of
Read tutorialPHP2008-11-22
Static Methods in PHP
Similar to static properties, PHP supports declaring methods as static. What this means is that your static methods are part of the class and are not bound to any specific object i
Read tutorialPHP2008-11-22
Static Properties in PHP
Classes can declare properties. Each instance of the class (i.e., object) has its own copy of these properties. However, a class can also contain static properties. Unlike regular
Read tutorialPHP2008-11-22
public, protected, and private Methods in PHP
Access modifiers may also be used in conjunction with object methods, and the rules are the same:
Read tutorialPHP2008-11-22
public, protected, and private Properties in PHP
A key paradigm in OOP is encapsulation and access protection of object properties (also referred to as member variables). Most common OO languages have three main access restrictio
Read tutorialThe future is yours to build.
One example today. A better developer tomorrow.