php $_SERVER
作者:互联网
PHP RINIT STATE HOW TO GET REQ IP
背景
void php_startup_auto_globals(void)
{
zend_register_auto_global(zend_string_init_interned("_GET", sizeof("_GET")-1, 1), 0, php_auto_globals_create_get);
zend_register_auto_global(zend_string_init_interned("_POST", sizeof("_POST")-1, 1), 0, php_auto_globals_create_post);
zend_register_auto_global(zend_string_init_interned("_COOKIE", sizeof("_COOKIE")-1, 1), 0, php_auto_globals_create_cookie);
zend_register_auto_global(zend_string_init_interned("_SERVER", sizeof("_SERVER")-1, 1), PG(auto_globals_jit), php_auto_globals_create_server);
zend_register_auto_global(zend_string_init_interned("_ENV", sizeof("_ENV")-1, 1), PG(auto_globals_jit), php_auto_globals_create_env);
zend_register_auto_global(zend_string_init_interned("_REQUEST", sizeof("_REQUEST")-1, 1), PG(auto_globals_jit), php_auto_globals_create_request);
zend_register_auto_global(zend_string_init_interned("_FILES", sizeof("_FILES")-1, 1), 0, php_auto_globals_create_files);
}
$_SERVER $_ENV $REQUEST 变量为即使变量(Just IN Time)
They are created when first used(just in time).
参考的方案
1、 $_SERVER 变量中去获取 IP
存在问题 $_SERVER 并没有初始化(RINIT)
2、http_globals 全局变量获取
参考鸟哥的博客
解决方案
PHP_RINIT(module) 阶段
// Server 变量是延迟创建 just in time
if (PG(auto_globals_jit)) {
//if (php_auto_globals_create_server(server)) {
if (zend_is_auto_global_str(ZEND_STRL("_SERVER")) {
DEBUG("Register TRACK_VARS_SERVER Success\n");
}
}
zval *server, *field;
zend_string *ip = NULL;
server = &PG(http_globals)[TRACK_VARS_SERVER];
if ( server != NULL && Z_TYPE_P(server) == IS_ARRAY) {
//Get Client Real IP
if ((field = zend_hash_str_find(Z_ARRVAL_P(server), "HTTP_CLIENT_IP", sizeof("HTTP_CLIENT_IP") - 1)) &&
Z_TYPE_P(field) == IS_STRING) {
ip = Z_STR_P(field);
}
else if ((field = zend_hash_str_find(Z_ARRVAL_P(server), "HTTP_X_FORWARDED_FOR", sizeof("HTTP_X_FORWARDED_FOR") - 1)) &&
Z_TYPE_P(field) == IS_STRING) {
ip = Z_STR_P(field);
}
else if ((field = zend_hash_str_find(Z_ARRVAL_P(server), "REMOTE_ADDR", sizeof("REMOTE_ADDR") - 1)) &&
Z_TYPE_P(field) == IS_STRING) {
ip = Z_STR_P(field);
}
else {
zend_error(512, "Get Request Info About IP Failed");
//return;
}
标签:auto,zend,SERVER,server,globals,sizeof,php 来源: https://blog.csdn.net/qq_41630483/article/details/120328732