Reporting a Bug
Warning: You are browsing the documentation for Symfony 4.x, which is no longer maintained.
Read the updated version of this page for Symfony 7.1 (the current stable version).
Whenever you find a bug in Symfony, we kindly ask you to report it. It helps us make a better Symfony.
Caution
If you think you've found a security issue, please use the special procedure instead.
Before submitting a bug:
- Double-check the official documentation to see if you're not misusing the framework;
- Ask for assistance on Stack Overflow, on the #support channel of
the Symfony Slack or on the
#symfonyIRC channel if you're not sure if your issue really is a bug.
If your problem definitely looks like a bug, report it using the official bug tracker and follow some basic rules:
- Use the title field to clearly describe the issue;
- Describe the steps needed to reproduce the bug with short code examples (providing a unit test that illustrates the bug is best);
- If the bug you experienced is not simple or affects more than one layer, providing a simple failing unit test may not be sufficient. In this case, please provide a reproducer;
- Give as much detail as possible about your environment (OS, PHP version, Symfony version, enabled extensions, ...);
- If there was an exception and you would like to report it, it is valuable to provide the stack trace for that exception. If you want to provide a stack trace you got on an HTML page, be sure to provide the plain text version, which should appear at the bottom of the page. Do not provide it as a screenshot, since search engines will not be able to index the text inside them. Same goes for errors encountered in a terminal, do not take a screenshot, but copy/paste the contents. If the stack trace is long, consider enclosing it in a <details> HTML tag. Be wary that stack traces may contain sensitive information, and if it is the case, be sure to redact them prior to posting your stack trace.
- (optional) Attach a patch.
