In simple words it is a pattern of symbol and characters. Regular expression is used to search,replace or modify the words/strings. It is the most important part of your daily programming usage whether rewriting url using .htaccess, form validation, validating user input etc.
Regular expression is a sequence of characters and each characters has it’s special meaning. Let’s look at some basic characters and it’s meaning.
PHP Magic methods are a specialized method that is executed in response to a specific event. Each magic methods start with two underscores(__) and it is called automatically when a certain condition is met. It triggers custom behaviors defined by a programmer inside the class. Some of the magic methods are __construct(), __destruct(), __toString(), __get(), __set(), __call() etc.
In this tutorial, we are going to explore php magic methods.
PHP Magic Methods
What is Cross Site Scripting (XSS). How to prevent this vulnerability in code.
XSS commonly known as cross-site scripting is a code injection technique or attack. In XSS user can inject any malicious HTML, Javascript or any other client side snippet on a web application. It is one of the major security attack after Sql Injection.