What is exception handling in PHP

Exception handling is used to change the normal flow of the code execution if a specified error (exceptional) condition occurs. This condition is called an exception.

An exception can be thrown, and caught (“catched”) within PHP. Code may be surrounded in a try block, to facilitate the catching of potential exceptions. Each try must have at least one corresponding catch block.


We will show different error handling methods:

Basic use of Exceptions
Creating a custom exception handler
Multiple exceptions
Re-throwing an exception
Setting a top level exception handler

Principles of exceptions

Code may be surrounded in a try block, to help catch potential exceptions
Each try block or “throw” must have at least one corresponding catch block
Multiple catch blocks can be used to catch different classes of exceptions
Exceptions can be thrown (or re-thrown) in a catch block within a try block

The basic syntax

Complete Example of php exception handling

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