debug_backtrace    85 Zend/zend_builtin_functions.c static ZEND_FUNCTION(debug_backtrace);
debug_backtrace   298 Zend/zend_builtin_functions.c 	ZEND_FE(debug_backtrace, 		arginfo_debug_backtrace)
debug_backtrace  2410 Zend/zend_builtin_functions.c ZEND_FUNCTION(debug_backtrace)