International Association of Scientific Innovation and Research (IASIR)
A large number of web applications, especially those deployed by companies for e-business operations involve high reliability, efficiency and confidentiality. Such applications are often written in script languages like PHP embedded in HTML, allowing establishing connection to databases, retrieving data, and putting them in the web. One of the most common in web application attacks is SQL injection. SQL injection is an attack in which malicious code is inserted into strings that are later passed to an instance of SQL server for parsing and execution.