How to call Calling Non-Existing function

Hi PHP Experts, Is there any way to call a non-existent or undeclared function and redirect the call to someother function by knowing its non-existense. Is there any try() and catch() idea or any configurations, or may be either error handler like thing. for example if I call a function 'Draw_Table()' without declaring like this Draw_Table(); it should know the non-existense of Draw_Table() and redirect to 'default_func' function default_func() { .... } Note: ---- Perl programmers please recollect 'AUTOLOAD' Method of a package. C++,Java programmers please recollect exception handling. Thanks in Advance. S.Murali Krishna smk_bk@yahoo.com ===================================== We grow slow trying to be great - E. Stanley Jones -------------------------------------