arginfo_debug_backtrace  237 Zend/zend_builtin_functions.c ZEND_BEGIN_ARG_INFO_EX(arginfo_debug_backtrace, 0, 0, 0)
arginfo_debug_backtrace  316 Zend/zend_builtin_functions.c 	ZEND_FE(debug_backtrace, 		arginfo_debug_backtrace)