How to get a caller method name in an class constructor, get_called_class() gives me the name of an extended class which was instantiated but how can I get the name of a method which was called in that class? I need this for a production state so debug_backtrace() is not a good solution.
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4 Answers
Why do you need this? If you have any consideration for other coders on the project and standards, find a solution which does not require the constructor to know about how it was called. If all other solutions fail, define a static factory method and make the constructor private for more control over instantiation.
Comments
It looks like there is not way to get it without debug_backtrace(). Still you can create your our function for this. Example from manual:
function get_caller_method()
{
$traces = debug_backtrace();
if (isset($traces[2]))
{
return $traces[2]['function'];
}
return null;
}
Comments
There is no automatic way of doing this other than the slow/ugly debug_backtrace, or passing the name as an argument to the constructor.... but you shouldn't really be building these kinds of dependencies into your classes.
Comments
If you don't want to use the debug_backtrace() function, you can also throw and catch an exception, to get a backtrace.
But that's also ugly... Anyway:
try
{
throw new Exception();
}
catch( Exception $e )
{
print_r( $e->getTrace() );
}
I don't know why you need the caller. Maybe you can fix this by using a different logic.
It should be better than getting a backtrace...
EDIT
The exception does not need to be thrown. Sorry for that part.
So you can simply use:
$e = new Exception();
print_r( $e->getTrace() );
But once again, you shouldn't need to use this!
