golden hour

/opt/alt/php80/usr/include/php/Zend

File/Folder	Size	Actions
zend.h	13.53 KB
zend_API.h	89.96 KB
zend_alloc.h	18.84 KB
zend_alloc_sizes.h	2.57 KB
zend_arena.h	5.93 KB
zend_ast.h	12.32 KB
zend_attributes.h	5.11 KB
zend_attributes_arginfo.h	503 B
zend_bitset.h	7.75 KB
zend_build.h	1.59 KB
zend_builtin_functions.h	1.48 KB
zend_builtin_functions_arginfo.h	12.71 KB
zend_closures.h	2.16 KB
zend_closures_arginfo.h	1.71 KB
zend_compile.h	43.81 KB
zend_config.h	32 B
zend_constants.h	6.33 KB
zend_cpuinfo.h	7.32 KB
zend_dtrace.h	2 KB
zend_errors.h	2.34 KB
zend_exceptions.h	4.02 KB
zend_exceptions_arginfo.h	7.91 KB
zend_execute.h	18.25 KB
zend_extensions.h	6.05 KB
zend_float.h	15.08 KB
zend_gc.h	3.85 KB
zend_gdb.h	1.39 KB
zend_generators.h	7.26 KB
zend_generators_arginfo.h	1.97 KB
zend_globals.h	7.88 KB
zend_globals_macros.h	2.74 KB
zend_hash.h	37.71 KB
zend_highlight.h	2.24 KB
zend_inheritance.h	1.92 KB
zend_ini.h	9.88 KB
zend_ini_parser.h	2.67 KB
zend_ini_scanner.h	1.84 KB
zend_ini_scanner_defs.h	225 B
zend_interfaces.h	4.33 KB
zend_interfaces_arginfo.h	5.16 KB
zend_istdiostream.h	1.5 KB
zend_iterators.h	3.5 KB
zend_language_parser.h	5.82 KB
zend_language_scanner.h	2.99 KB
zend_language_scanner_defs.h	310 B
zend_list.h	3.39 KB
zend_llist.h	3.71 KB
zend_long.h	4.15 KB
zend_map_ptr.h	3.39 KB
zend_modules.h	4.72 KB
zend_multibyte.h	4.78 KB
zend_multiply.h	9.62 KB
zend_object_handlers.h	13.53 KB
zend_objects.h	1.77 KB
zend_objects_API.h	4.59 KB
zend_observer.h	3.34 KB
zend_operators.h	30.45 KB
zend_portability.h	20.36 KB
zend_ptr_stack.h	4.21 KB
zend_range_check.h	2.93 KB
zend_signal.h	3.99 KB
zend_smart_str.h	5.25 KB
zend_smart_str_public.h	1.1 KB
zend_smart_string.h	4.14 KB
zend_smart_string_public.h	1.21 KB
zend_sort.h	1.5 KB
zend_stack.h	2.31 KB
zend_stream.h	3.47 KB
zend_string.h	18.36 KB
zend_strtod.h	1.81 KB
zend_strtod_int.h	3.33 KB
zend_system_id.h	1.37 KB
zend_ts_hash.h	5.34 KB
zend_type_info.h	3.67 KB
zend_types.h	43.85 KB
zend_variables.h	2.99 KB
zend_virtual_cwd.h	12.32 KB
zend_vm.h	1.91 KB
zend_vm_def.h	273.36 KB
zend_vm_execute.h	1.98 MB
zend_vm_handlers.h	89.27 KB
zend_vm_opcodes.h	12.23 KB
zend_vm_trace_handlers.h	3.14 KB
zend_vm_trace_lines.h	1.71 KB
zend_vm_trace_map.h	2.6 KB
zend_weakrefs.h	1.67 KB
zend_weakrefs_arginfo.h	2.49 KB

Edit: zend_builtin_functions.h

/*
   +----------------------------------------------------------------------+
   | Zend Engine                                                          |
   +----------------------------------------------------------------------+
   | Copyright (c) Zend Technologies Ltd. (http://www.zend.com)           |
   +----------------------------------------------------------------------+
   | This source file is subject to version 2.00 of the Zend license,     |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | http://www.zend.com/license/2_00.txt.                                |
   | If you did not receive a copy of the Zend license and are unable to  |
   | obtain it through the world-wide-web, please send a note to          |
   | license@zend.com so we can mail you a copy immediately.              |
   +----------------------------------------------------------------------+
   | Authors: Andi Gutmans <andi@php.net>                                 |
   |          Zeev Suraski <zeev@php.net>                                 |
   +----------------------------------------------------------------------+
*/

#ifndef ZEND_BUILTIN_FUNCTIONS_H
#define ZEND_BUILTIN_FUNCTIONS_H

zend_result zend_startup_builtin_functions(void);

BEGIN_EXTERN_C()
ZEND_API void zend_fetch_debug_backtrace(zval *return_value, int skip_last, int options, int limit);
END_EXTERN_C()

#endif /* ZEND_BUILTIN_FUNCTIONS_H */