php-error-handling

Implement modern PHP error and exception handling patterns. Use when implementing exception hierarchies, error handlers, or custom exceptions in PHP. (triggers: **/*.php, try, catch, finally, Throwable, set_exception_handler)

385 stars

Best use case

php-error-handling is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Implement modern PHP error and exception handling patterns. Use when implementing exception hierarchies, error handlers, or custom exceptions in PHP. (triggers: **/*.php, try, catch, finally, Throwable, set_exception_handler)

Teams using php-error-handling should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

  • You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

  • You only need a quick one-off answer and do not need a reusable workflow.
  • You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/php-error-handling/SKILL.md --create-dirs "https://raw.githubusercontent.com/HoangNguyen0403/agent-skills-standard/main/skills/php/php-error-handling/SKILL.md"

Manual Installation

  1. Download SKILL.md from GitHub
  2. Place it in .claude/skills/php-error-handling/SKILL.md inside your project
  3. Restart your AI agent — it will auto-discover the skill

How php-error-handling Compares

Feature / Agentphp-error-handlingStandard Approach
Platform SupportNot specifiedLimited / Varies
Context Awareness High Baseline
Installation ComplexityUnknownN/A

Frequently Asked Questions

What does this skill do?

Implement modern PHP error and exception handling patterns. Use when implementing exception hierarchies, error handlers, or custom exceptions in PHP. (triggers: **/*.php, try, catch, finally, Throwable, set_exception_handler)

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# PHP Error Handling

## **Priority: P0 (CRITICAL)**

## Structure

See [implementation examples](references/implementation.md#directory-structure) for directory layout.

## Build Exception Hierarchies

- **Exception-Driven**: Favor **`throwing exceptions`** over returning `false` or `null` for error states.
- **Custom Exceptions**: Extend **`RuntimeException`** or **`LogicException`** for domain-specific errors.
- **Multi-Catch**: Use Union types in catch blocks: **`catch (DomainException | InvalidArgumentException $e)`**.

See [implementation examples](references/implementation.md#exception-hierarchy-example) for domain exception hierarchy with multi-catch and finally.

## Configure Global Error Handling

- **Throwable Interface**: Always catch **`Throwable`** for both PHP 7/8 Errors and Exceptions.
- **Global Handler**: Use **`set_exception_handler`** and **`set_error_handler`** for top-level logging and cleanup.
- **Finally**: Always use **`finally`** for resource cleanup (e.g., closing file handles, DB connections).
- **PSR-3 Logging**: Implement **`Psr\Log\LoggerInterface`** for structured error reporting.
- **Production Guard**: Ensure **`display_errors=Off`** and **`log_errors=On`** in production `php.ini`.

## Anti-Patterns

- **No `@` error suppression**: Handle or log errors explicitly.
- **No empty catch blocks**: Log or rethrow all caught exceptions.
- **No exceptions for control flow**: Reserve for unexpected errors only.
- **No `display_errors` in production**: Log to file; never show users.

## References

- [Exception & Logging Patterns](references/implementation.md)

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