PERL Caller equivalent function

Hi, Perl has a function named caller with the following signature and return values: ($package, $filename, $line, $subroutine,

    $hasargs, $wantarray, $evaltext, $is_require) = caller($i);

This function returns information pertaining to the calling routine, such as the name of the function and package that called this function. Is there such a function for PHP? Please let me know. thanks, sgs.