Increasing nesting function calls limit

Question

There is one very bad limit in PHP  if you call some function a1   that calls a2    that calls a3    so when a99   will call a100   you will see     Fatal error  Maximum function nesting level of  100  reached  aborting    Is there any way to increase the limit of 100 nesting calls to 500 or 10000   This is critical for me because I m developing an event-based system with a lot of callbacks

User · Accepted Answer

This error message comes specifically from the XDebug extension. PHP itself does not have a function nesting limit. Change the setting in your php.ini:

xdebug.max_nesting_level = 200

or in your PHP code:

ini_set('xdebug.max_nesting_level', 200);

As for if you really need to change it (i.e.: if there's a alternative solution to a recursive function), I can't tell without the code.

User · Answer

Do you have Zend  IonCube  or xDebug installed   If so  that is probably where you are getting this error from   I ran into this a few years ago  and it ended up being Zend putting that limit there  not PHP   Of course removing it will let you go past the 100 iterations  but you will eventually hit the memory limits

User · Answer

Personally I would suggest this is an error as opposed to a setting that needs adjusting  In my code it was because I had a class that had the same name as a library within one of my controllers and it seemed to trip it up   Output errors and see where this is being triggered

[php] Increasing nesting function calls limit

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