[development] selenium test

[Robert Douglass]

And since we have our own handling, couldn't we just have a 
debug_backtrace() sitting in there, and perhaps an extra mode on the 
error handling settings that lets errors or warnings do a backtrace?

David Strauss wrote:
> Doug Green wrote:
>   
>> The way I track these down is using xdebug2.  There's a function called
>> xdebug_get_function_stack that prints the function stack.
>> Edit bootstrap.inc and put this code at the top of check_plain (the
>> function that's really getting the error), it will print the function
>> stack out when you would get the error:
>>
>>  if (is_array($text)) {
>>    print_r(xdebug_get_function_stack());
>>  }
>>
>> Of course, it means that you have to get xdebug installed and working,
>> and this might take a bit of an effort.
>>     
>
> You don't need xdebug to print a backtrace in PHP:
>
> debug_backtrace()
>
>