Hierarchy of PHP exceptions

Published On2020-03-30

PHP is on its way to use more and more exceptions, and with PHP 8.0 throwing \TypeError and \ValueError exceptions, you will be seeing lots of exceptions working with modern PHP!

Here is a quick chart to help you take an overview look at the Exceptions used in PHP versions:

  ├── Error
  │     ├── ArithmeticError
  │     │       └── DivisionByZeroError
  │     ├── AssertionError
  │     ├── CompileError
  │     │       └── ParseError
  │     ├── TypeError
  │     │   └── ArgumentCountError
  │     ├── ValueError
  │     ├── UnhandledMatchError
  |     └── FiberError
  └── Exception
        ├── ClosedGeneratorException
        ├── DOMException
        ├── ErrorException
        ├── IntlException
        ├── JsonException
        ├── LogicException
        │       ├── BadFunctionCallException
        │       │        └── BadMethodCallException
        │       ├── DomainException
        │       ├── InvalidArgumentException
        │       ├── LengthException
        │       └── OutOfRangeException
        ├── PharException
        ├── ReflectionException
        ├── RuntimeException
        │       ├── OutOfBoundsException
        │       ├── OverflowException
        │       ├── PDOException
        │       ├── RangeException
        │       ├── UnderflowException
        │       ├── UnexpectedValueException
        │       └── PDOException
        └── SodiumException


  • All of these exceptions are in the global namespace.
  • \SodiumException is from the sodium extension.
  • \PDOException is from the pdo extension.
  • The list is not exhaustive. Additional extensions might add more exceptions, but you can catch them all by catching \Throwable, or by the more specific \Error or \Exception classes.


PHP 8.0
PHP 8.1

Recent Articles on PHP.Watch

All ArticlesFeed
Compressed HTTP Requests with Curl and PHP

Compressed HTTP Requests with Curl and PHP

How to make fast and efficient HTTP(S) requests via Curl using transfer encodings such as gzip, zstd, Brotli, and deflate.
How to compile PHP from source on Fedora/RHEL/etc

How to compile PHP from source on Fedora/RHEL/etc

A comprehensive guide on how to compile PHP from source on Fedora, RHEL, CentOS, etc. operating systems.
Phive: Secure, Easy, and Contained Phar Manager

Phive: Secure, Easy, and Contained Phar Manager

Phive is a PHP tool to easily install, validate, and update Phar archives in a PHP application.
Subscribe to PHP.Watch newsletter for monthly updates

You will receive an email on last Wednesday of every month and on major PHP releases with new articles related to PHP, upcoming changes, new features and what's changing in the language. No marketing emails, no selling of your contacts, no click-tracking, and one-click instant unsubscribe from any email you receive.