Maximum function nesting level reached error in Drupal

Question

I am working with Civicrm with Drupal. I created one custom import section. Whenever I submit mapped form it shows this kind of an error:

Fatal error: Maximum function nesting level of '100' reached, aborting! in C:\wamp\www\crmdev\includes\common.inc on line 290

How can I fix this, and how to reset the nesting level?

Answer 1

If you are using xdebug extension
You can do this ini_set('xdebug.max_nesting_level', 200)

xdebug.max_nesting_level

• Meetai.com: This was useful for the Commerce Paypal WPS module (drupal.org/node/1611570), as well.
• subhojit777: This was also useful for Commerce FedEx module (drupal.org/project/commerce_fedex)
• Adam: This also happens generall when addding collection types to Symfony Forms

Answer 2

Your code almost certainly has a bottomless recursion, but it's difficult to be sure without seeing the code.

Answer 3

Max nesting level is typically set by zend/xDebug, if infinite recursion occurs without those you will get a segfault instead, you should focus on fixing that infinite recursion instead ...

• Scorchio: Yeah, xdebug is causing this notice, but without xdebug it would be worse. Try to fix it, xdebug will help to pinpoint the exact issue.