Describe the difference between GET and POST methods in PHP.
GET displays the submitted data as part of the URL, during normal navigation, whereas POST does not. Also, GET can handle a maximum of 2048 characters, POST has no such restrictions. GET allows only ASCII data, POST has no restrictions, binary data are also allowed.
How would you handle exceptions in PHP?
Exceptions in PHP are handled using a try, catch, and finally blocks. Code within the try block is executed, and if an exception occurs, the code execution is passed to the catch block. The finally block is optional and contains code that will always be executed, regardless of whether an exception was thrown.
What are magic methods in PHP?
Magic methods in PHP are special functions which are always defined inside classes, starting with two underscores (__). For example, __construct, __destruct, __call, __get, __set are some of the magic methods which allow a developer to override default PHP behavior.
Describe the difference between == and === operator in PHP.
In PHP, == is the equal operator and it checks if the values of two operands are equal or not. If yes, then the condition becomes true. On the other hand, === is the identical operator and it checks if the values and their types are equal or not. If yes, then the condition becomes true.
How would you prevent SQL Injection in PHP?
SQL Injection can be prevented in PHP by using prepared statements and parameterized queries. Both of these methods ensure that an attacker is not able to change the intent of a query, even if SQL commands are inserted by an attacker.
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