On Sun, Dec 27, 2015 at 10:00 AM, Lester Caine <lester@xxxxxxxxxxx> wrote: > On 27/12/15 16:52, Aziz Saleh wrote: > > What does get_class_methods give you? Does it list those functions part > of > > of the list? > > Good point ... > Fatal error: Call to undefined method GedcomRecord::get_class_methods() get_class_methods [1] is a global function--not a method. Pass it the name of the class to inspect. print_r(get_class_methods('GedcomRecord')); Note that I passed 'GedcomRecord' instead of 'Person' because that's what PHP says you have in the error message. You're trying to call GedcomRecord::getChildFamilies(). If Person::getInstance() returned a Person instance, the error message would read Fatal error: Call to undefined method Person::getChildFamilies() For example: $ php --version PHP 5.6.5-1+deb.sury.org~trusty+1 (cli) (built: Jan 26 2015 11:42:37) php > class Record { function foo() { echo "Hi!\n"; } } php > class Person extends Record { function bar() { echo "Bye!\n"; } } php > $p = new Person; php > $p->foo(); Hi! php > $p->bar(); Bye! php > $p->baz(); PHP Fatal error: Call to undefined method Person::baz() in php shell code on line 1 You need to figure out why Person::getInstance() is returning a base GedcomRecord instance instead of a Person instance. David [1] http://php.net/manual/en/function.get-class-methods.php