Add option to suppress experimental notices

This commit introduces a new RAYAOP_QUIET macro which, when set, suppresses experimental notices for the Ray.Aop PHP extension. The option to enable or disable it is included in the config.m4 file.

config.m4

@@ -34,4 +34,11 @@ if test "$PHP_RAYAOP" != "no"; then
   dnl Add instruction to install header files
   dnl link https://www.phpinternalsbook.com/build_system/build_system.html#php-install-headers
   PHP_INSTALL_HEADERS([ext/rayaop], [php_rayaop.h])
+
+  PHP_ARG_ENABLE(rayaop-quiet, whether to suppress experimental notices,
+  [ --enable-rayaop-quiet   Suppress experimental notices], no, yes)
+
+  if test "$PHP_RAYAOP_QUIET" != "no"; then
+      AC_DEFINE(RAYAOP_QUIET, 1, [Whether to suppress experimental notices])
+  fi
 fi

rayaop.c

@@ -4,6 +4,10 @@
 
 #define PHP_RAYAOP_VERSION "0.1.0"
 
+#ifndef RAYAOP_QUIET
+#define RAYAOP_QUIET 0
+#endif
+
 #include "php_rayaop.h"  /* Include header file for RayAOP extension */
 
 /* Declaration of module global variables */
@@ -332,6 +336,10 @@ PHP_MINIT_FUNCTION(rayaop) {
     php_rayaop_init_globals(&rayaop_globals); /* Initialize global variables in non-thread-safe mode */
 #endif
 
+#if PHP_RAYAOP_EXPERIMENTAL && !RAYAOP_QUIET
+    php_error_docref(NULL, E_NOTICE, "The Ray.Aop extension is experimental. Its functions may change or be removed in future releases.");
+#endif
+
     zend_class_entry ce;
     INIT_CLASS_ENTRY(ce, "Ray\\Aop\\MethodInterceptorInterface", ray_aop_method_interceptor_interface_methods);
     /* Initialize class entry */