Reference Guide

Zend Server Reference Manual
Possible Causes and Solutions:
Generally, logic errors trigger Function Error events such as queries that you expect to return something
and they do not and not PHP errors.
If you have a function that you need to return FALSE as an acceptable value, remove the function from
the monitored functions list.
424
Internal PHP functions – If you are using internal PHP functions, the best reference for
investigating the problem is use the PHP manual (The Zend Controller’s Search option provides
quick access to searching the PHP Manual.
You can also check your logs to see if they show PHP error information logged the same time the
function error occurred.
User define functions – If it is a user defined function, running the debugger will help find out if the
function is running complicated actions that are causing the function to fail. Using Breakpoints
while debugging, will further pinpoint the problematic area in the code.
False Positives - Sometimes functions are supposed to return FALSE. Not all functions that return
FALSE are indicative of a problem in your code or environment and they may be no indication of
unacceptable behavior. If this is the case, remove the function from the Rule’s “Event Condition”
list or set the status of issues triggered by this function to ignored.
Note:
Removing a function from the rule, affects all instances of the function. Before removing the function from
the list, make sure the function does not require monitoring wherever it is used.