golden hour

/opt/alt/php82/usr/include/php/Zend

File/Folder	Size	Actions
Optimizer	-
zend.h	15.27 KB
zend_API.h	98.02 KB
zend_alloc.h	18.83 KB
zend_alloc_sizes.h	2.57 KB
zend_arena.h	5.92 KB
zend_ast.h	12.7 KB
zend_atomic.h	5.57 KB
zend_attributes.h	5.48 KB
zend_attributes_arginfo.h	10.5 KB
zend_bitset.h	7.74 KB
zend_build.h	1.59 KB
zend_builtin_functions.h	1.48 KB
zend_builtin_functions_arginfo.h	13.85 KB
zend_closures.h	2.24 KB
zend_closures_arginfo.h	2.04 KB
zend_compile.h	47.69 KB
zend_config.h	32 B
zend_constants.h	6.55 KB
zend_constants_arginfo.h	1.32 KB
zend_cpuinfo.h	7.38 KB
zend_dtrace.h	2 KB
zend_enum.h	2.78 KB
zend_enum_arginfo.h	1.66 KB
zend_errors.h	2.34 KB
zend_exceptions.h	4.44 KB
zend_exceptions_arginfo.h	17.34 KB
zend_execute.h	20.07 KB
zend_extensions.h	6.2 KB
zend_fibers.h	4.85 KB
zend_fibers_arginfo.h	3.49 KB
zend_float.h	15.08 KB
zend_gc.h	3.82 KB
zend_gdb.h	1.39 KB
zend_generators.h	7.34 KB
zend_generators_arginfo.h	2.72 KB
zend_globals.h	8.99 KB
zend_globals_macros.h	2.74 KB
zend_hash.h	50.11 KB
zend_highlight.h	2.24 KB
zend_inheritance.h	2.37 KB
zend_ini.h	11.65 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	4.02 KB
zend_interfaces_arginfo.h	7.84 KB
zend_istdiostream.h	1.5 KB
zend_iterators.h	3.7 KB
zend_language_parser.h	5.96 KB
zend_language_scanner.h	2.97 KB
zend_language_scanner_defs.h	310 B
zend_list.h	3.39 KB
zend_llist.h	3.91 KB
zend_long.h	4.13 KB
zend_map_ptr.h	2.94 KB
zend_max_execution_timer.h	1.45 KB
zend_mmap.h	1.47 KB
zend_modules.h	4.71 KB
zend_multibyte.h	4.78 KB
zend_multiply.h	9.97 KB
zend_object_handlers.h	14.02 KB
zend_objects.h	1.77 KB
zend_objects_API.h	4.54 KB
zend_observer.h	6.25 KB
zend_operators.h	33.02 KB
zend_portability.h	22.26 KB
zend_ptr_stack.h	4.2 KB
zend_range_check.h	2.93 KB
zend_signal.h	3.98 KB
zend_smart_str.h	6.76 KB
zend_smart_str_public.h	1.13 KB
zend_smart_string.h	4.11 KB
zend_smart_string_public.h	1.21 KB
zend_sort.h	1.5 KB
zend_stack.h	2.3 KB
zend_stream.h	3.53 KB
zend_string.h	20.23 KB
zend_strtod.h	2.1 KB
zend_strtod_int.h	3.33 KB
zend_system_id.h	1.37 KB
zend_type_info.h	4.44 KB
zend_types.h	46.47 KB
zend_variables.h	2.99 KB
zend_virtual_cwd.h	12.7 KB
zend_vm.h	1.95 KB
zend_vm_def.h	281.45 KB
zend_vm_execute.h	2.02 MB
zend_vm_handlers.h	89.36 KB
zend_vm_opcodes.h	12.39 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	2.74 KB
zend_weakrefs_arginfo.h	3.4 KB

Edit: zend_smart_string.h

/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Sascha Schumann <sascha@schumann.cx>                         |
   |         Xinchen Hui <laruence@php.net>                               |
   +----------------------------------------------------------------------+
 */

#ifndef PHP_SMART_STRING_H
#define PHP_SMART_STRING_H

#include "zend_smart_string_public.h"

#include <stdlib.h>
#include <zend.h>

/* wrapper */

#define smart_string_appends_ex(str, src, what) \
	smart_string_appendl_ex((str), (src), strlen(src), (what))
#define smart_string_appends(str, src) \
	smart_string_appendl((str), (src), strlen(src))
#define smart_string_append_ex(str, src, what) \
	smart_string_appendl_ex((str), ((smart_string *)(src))->c, \
		((smart_string *)(src))->len, (what));
#define smart_string_sets(str, src) \
	smart_string_setl((str), (src), strlen(src));

#define smart_string_appendc(str, c) \
	smart_string_appendc_ex((str), (c), 0)
#define smart_string_free(s) \
	smart_string_free_ex((s), 0)
#define smart_string_appendl(str, src, len) \
	smart_string_appendl_ex((str), (src), (len), 0)
#define smart_string_append(str, src) \
	smart_string_append_ex((str), (src), 0)
#define smart_string_append_long(str, val) \
	smart_string_append_long_ex((str), (val), 0)
#define smart_string_append_unsigned(str, val) \
	smart_string_append_unsigned_ex((str), (val), 0)

ZEND_API void ZEND_FASTCALL _smart_string_alloc_persistent(smart_string *str, size_t len);
ZEND_API void ZEND_FASTCALL _smart_string_alloc(smart_string *str, size_t len);

static zend_always_inline size_t smart_string_alloc(smart_string *str, size_t len, bool persistent) {
	if (UNEXPECTED(!str->c) || UNEXPECTED(len >= str->a - str->len)) {
		if (persistent) {
			_smart_string_alloc_persistent(str, len);
		} else {
			_smart_string_alloc(str, len);
		}
	}
	return str->len + len;
}

static zend_always_inline void smart_string_free_ex(smart_string *str, bool persistent) {
	if (str->c) {
		pefree(str->c, persistent);
		str->c = NULL;
	}
	str->a = str->len = 0;
}

static zend_always_inline void smart_string_0(smart_string *str) {
	if (str->c) {
		str->c[str->len] = '\0';
	}
}

static zend_always_inline void smart_string_appendc_ex(smart_string *dest, char ch, bool persistent) {
	dest->len = smart_string_alloc(dest, 1, persistent);
	dest->c[dest->len - 1] = ch;
}

static zend_always_inline void smart_string_appendl_ex(smart_string *dest, const char *str, size_t len, bool persistent) {
	size_t new_len = smart_string_alloc(dest, len, persistent);
	memcpy(dest->c + dest->len, str, len);
	dest->len = new_len;

}

static zend_always_inline void smart_string_append_long_ex(smart_string *dest, zend_long num, bool persistent) {
	char buf[32];
	char *result = zend_print_long_to_buf(buf + sizeof(buf) - 1, num);
	smart_string_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
}

static zend_always_inline void smart_string_append_unsigned_ex(smart_string *dest, zend_ulong num, bool persistent) {
	char buf[32];
	char *result = zend_print_ulong_to_buf(buf + sizeof(buf) - 1, num);
	smart_string_appendl_ex(dest, result, buf + sizeof(buf) - 1 - result, persistent);
}

static zend_always_inline void smart_string_setl(smart_string *dest, char *src, size_t len) {
	dest->len = len;
	dest->a = len + 1;
	dest->c = src;
}

static zend_always_inline void smart_string_reset(smart_string *str) {
	str->len = 0;
}

#endif