zend_fetch_debug_backtrace ... &reftitle.description; #include <zend_builtin_functions.h> zend_fetch_debug_backtrace zval*return_value intskip_last intprovide_object magicTSRMLS_DC ... &reftitle.parameters; return_value ... skip_last ... provide_object ... TSRMLS_DC ... &reftitle.returnvalues; ...