zend_do_implement_interface 2554 Zend/zend_API.c 		zend_do_implement_interface(class_entry, interface_entry TSRMLS_CC);
zend_do_implement_interface 4955 Zend/zend_vm_def.h 	zend_do_implement_interface(ce, iface TSRMLS_CC);
zend_do_implement_interface 1502 Zend/zend_vm_execute.h 	zend_do_implement_interface(ce, iface TSRMLS_CC);