feat(extension): 添加请求生命周期钩子函数支持

- 在扩展模板中添加 PHP_RINIT 和 PHP_RSHUTDOWN 函数实现
- 配置模块入口结构以启用请求初始化和关闭回调
- 更新主程序初始化逻辑以使用模块生命周期函数
- 实现请求启动和关闭时的应用程序初始化清理功能
- 解决 PHP 内部字符串处理的双释放问题
- 简化示例代码以演示全局变量访问功能

examples/hello.php

@@ -1,33 +1,14 @@
 <?php
 
-function main(int $argc, array $argv): int
+function main(): int
 {
-    $a = 1;
-    $b = 2;
-    $c = 3.12343;
-    $d = 'hello';
-    $e = ['hello' => 1, 'world' => 33.43];
-
-    for ($i = 1; $i < $argc; ++$i) {
-        $a += $argv[$i];
-    }
-
-    $argc = 999;
-    $a = $b * 13;
-    $a += $b << 4;
-    $a += $b >> 1;
-
-    $_tmp = $e['hello'];
-    $_tmp -= 4;
-    $_tmp *= 5;
-    $_tmp /= 10;
-    $_tmp %= 10;
-
-    var_dump($_tmp, 1000);
-
-    echo "value:=" . ($a + $b);
-
-    echo "value:=", $a, $b;
-
-    return $a * $b;
+    global $a;
+    $a = 100;
+
+    var_dump($GLOBALS['a']);
+    var_dump($a);
+    var_dump(gettype($_SERVER));
+    var_dump($_SERVER['argc']);
+    var_dump($_SERVER['argv']);
+    return 0;
 }

src/cpp/main.cc

@@ -4,35 +4,44 @@
 #endif
 #include <phpx.h>
 
-extern php::Var argc;
-extern php::Var argv;
-
-extern void php_app_init();
-extern void php_app_clean();
 extern zend_module_entry *php_embed_get_module();
 
-int main(int cpp_argc, char **cpp_argv) {
-    php_embed_init(cpp_argc, cpp_argv);
-    php::throw_impl = [](zend_object *ex) { throw ex; };
-    zend_module_entry *module = php_embed_get_module();
-
+void module_init(zend_module_entry *module) {
     if (zend_register_module_ex(module, MODULE_PERSISTENT) == NULL) {
         zend_error(E_ERROR, "Failed to register module [%s]", module->name);
-        return 255;
+        exit(255);
     }
-
     if (zend_startup_module_ex(module) == FAILURE) {
         zend_error(E_ERROR, "Failed to startup module [%s]", module->name);
-        return 255;
+        exit(255);
     }
+}
+
+void module_shutdown(zend_module_entry *module) {
+    /**
+     * There is a bug in PHP's handling of internal strings. All interned strings are released in the request shutdown
+     * function, but then released again in the php_embed_shutdown function, resulting in a use-after-free issue. These
+     * must be manually removed from the module table to prevent double release.
+     */
+    auto name_len = strlen(module->name);
+    auto lcname = zend_string_alloc(name_len, module->type == MODULE_PERSISTENT);
+    zend_str_tolower_copy(ZSTR_VAL(lcname), module->name, name_len);
+    zend_hash_del(&module_registry, lcname);
+}
+
+int main(int cpp_argc, char **cpp_argv) {
+    php_embed_init(cpp_argc, cpp_argv);
+    php::throw_impl = [](zend_object *ex) { throw ex; };
+
+    zend_module_entry *module = php_embed_get_module();
+    module_init(module);
 
     int rc = 0;
 #if PPROF_ON
     ProfilerStart("profile.out");
 #endif
     try {
-        php::request_init();
-        php_app_init();
+        module->request_startup_func(module->type, module->module_number);
         php::eval("main();");
     } catch (zend_object *e) {
         rc = EG(exit_status);
@@ -41,19 +50,8 @@ int main(int cpp_argc, char **cpp_argv) {
 #if PPROF_ON
     ProfilerStop();
 #endif
-    php_app_clean();
-    php::request_shutdown();
-
-    /**
-     * There is a bug in PHP's handling of internal strings. All interned strings are released in the request shutdown
-     * function, but then released again in the php_embed_shutdown function, resulting in a use-after-free issue. These
-     * must be manually removed from the module table to prevent double release.
-     */
-    auto name_len = strlen(module->name);
-    auto lcname = zend_string_alloc(name_len, module->type == MODULE_PERSISTENT);
-    zend_str_tolower_copy(ZSTR_VAL(lcname), module->name, name_len);
-    zend_hash_del(&module_registry, lcname);
 
+    module->request_shutdown_func(module->type, module->module_number);
     php_embed_shutdown();
 
     return rc;

src/template/extension.cc.php

@@ -136,14 +136,26 @@ foreach ($this->nativeConstants as $name => $constant):
 <?php endforeach; ?>
 }
 
+static PHP_RINIT_FUNCTION(<?=$this->targetName?>) {
+    php::request_init();
+    php_app_init();
+    return SUCCESS;
+}
+
+static PHP_RSHUTDOWN_FUNCTION(<?=$this->targetName?>) {
+    php_app_clean();
+    php::request_shutdown();
+    return SUCCESS;
+}
+
 zend_module_entry <?=$this->targetName?>_module_entry = {
     STANDARD_MODULE_HEADER,
     "<?=$this->targetName?>",
     ext_functions,
     PHP_MINIT(<?=$this->targetName?>),
     nullptr,
-    nullptr,
-    nullptr,
+    PHP_RINIT(<?=$this->targetName?>),
+    PHP_RSHUTDOWN(<?=$this->targetName?>),
     nullptr,
     nullptr,
     STANDARD_MODULE_PROPERTIES,