diff --git a/builtin-functions/kphp-light/stdlib/server-functions.txt b/builtin-functions/kphp-light/stdlib/server-functions.txt
index 5d39ff9683..176aae5c06 100644
--- a/builtin-functions/kphp-light/stdlib/server-functions.txt
+++ b/builtin-functions/kphp-light/stdlib/server-functions.txt
@@ -4,6 +4,8 @@
 
 function ini_get ($s ::: string): string | false;
 
+function getopt ($options ::: string, $longopt ::: array = array(), ?int &$rest_index = null) ::: mixed[] | false;
+
 // === Handlers ===================================================================================
 
 function register_shutdown_function (callable():void $callback) ::: void;
@@ -118,8 +120,6 @@ function kphp_extended_instance_cache_metrics_init(callable(string $key):string
 function register_kphp_on_warning_callback(callable(string $warning_message, string[] $stacktrace):void $stacktrace) ::: void;
 function register_kphp_on_oom_callback(callable():void $callback) ::: bool;
 
-/** @kphp-extern-func-info stub */
-function getopt ($options ::: string, $longopt ::: array = array(), ?int &$rest_index = null) ::: mixed[] | false;
 
 /** @kphp-extern-func-info stub generation-required */
 function profiler_set_function_label($label ::: string) ::: void;
diff --git a/runtime-light/state/component-state.cpp b/runtime-light/state/component-state.cpp
index 4bbf460660..7df60a3545 100644
--- a/runtime-light/state/component-state.cpp
+++ b/runtime-light/state/component-state.cpp
@@ -44,6 +44,21 @@ void ComponentState::parse_ini_arg(std::string_view key_view, std::string_view v
   ini_opts.set_value(key_str, value_str);
 }
 
+void ComponentState::parse_cli_arg(std::string_view key_view, std::string_view value_view) noexcept {
+  if (!key_view.starts_with(CLI_ARG_PREFIX)) [[unlikely]] {
+    php_warning("wrong cli argument format %s", key_view.data());
+    return;
+  }
+
+  string key_str{std::next(key_view.data(), CLI_ARG_PREFIX.size()), static_cast<string::size_type>(key_view.size() - CLI_ARG_PREFIX.size())};
+  key_str.set_reference_counter_to(ExtraRefCnt::for_global_const);
+
+  string value_str{value_view.data(), static_cast<string::size_type>(value_view.size())};
+  value_str.set_reference_counter_to(ExtraRefCnt::for_global_const);
+
+  cli_opts.set_value(key_str, value_str);
+}
+
 void ComponentState::parse_runtime_config_arg(std::string_view value_view) noexcept {
   // FIXME: actually no need to allocate string here
   auto [config, ok]{json_decode(string{value_view.data(), static_cast<string::size_type>(value_view.size())})};
@@ -62,6 +77,8 @@ void ComponentState::parse_args() noexcept {
 
     if (key_view.starts_with(INI_ARG_PREFIX)) {
       parse_ini_arg(key_view, value_view);
+    } else if (key_view.starts_with(CLI_ARG_PREFIX)) {
+      parse_cli_arg(key_view, value_view);
     } else if (key_view == RUNTIME_CONFIG_ARG) {
       parse_runtime_config_arg(value_view);
     } else {
@@ -70,4 +87,5 @@ void ComponentState::parse_args() noexcept {
   }
   runtime_config.set_reference_counter_to(ExtraRefCnt::for_global_const);
   ini_opts.set_reference_counter_to(ExtraRefCnt::for_global_const);
+  cli_opts.set_reference_counter_to(ExtraRefCnt::for_global_const);
 }
diff --git a/runtime-light/state/component-state.h b/runtime-light/state/component-state.h
index ab18612cc6..45cfafb2a9 100644
--- a/runtime-light/state/component-state.h
+++ b/runtime-light/state/component-state.h
@@ -19,6 +19,7 @@ struct ComponentState final : private vk::not_copyable {
   const uint32_t argc;
   mixed runtime_config;
   array<string> ini_opts;
+  array<mixed> cli_opts;
   const uint32_t envc;
   array<string> env;
 
@@ -26,6 +27,7 @@ struct ComponentState final : private vk::not_copyable {
     : allocator(INIT_COMPONENT_ALLOCATOR_SIZE, 0)
     , argc(k2::args_count())
     , ini_opts(array_size{argc, false}) /* overapproximation */
+    , cli_opts(array_size{argc, false})
     , envc(k2::env_count())
     , env(array_size{envc, false}) {
     parse_env();
@@ -42,6 +44,7 @@ struct ComponentState final : private vk::not_copyable {
 
 private:
   static constexpr std::string_view INI_ARG_PREFIX = "ini ";
+  static constexpr std::string_view CLI_ARG_PREFIX = "cli ";
   static constexpr std::string_view RUNTIME_CONFIG_ARG = "runtime-config";
   static constexpr auto INIT_COMPONENT_ALLOCATOR_SIZE = static_cast<size_t>(512U * 1024U); // 512KB
 
@@ -51,5 +54,7 @@ struct ComponentState final : private vk::not_copyable {
 
   void parse_ini_arg(std::string_view, std::string_view) noexcept;
 
+  void parse_cli_arg(std::string_view, std::string_view) noexcept;
+
   void parse_runtime_config_arg(std::string_view) noexcept;
 };
diff --git a/runtime-light/state/init-functions.cpp b/runtime-light/state/init-functions.cpp
index d291f11760..5c844cec05 100644
--- a/runtime-light/state/init-functions.cpp
+++ b/runtime-light/state/init-functions.cpp
@@ -5,6 +5,7 @@
 #include "runtime-light/state/init-functions.h"
 
 #include <cinttypes>
+#include <string_view>
 #include <cstdint>
 
 #include "runtime-common/core/utils/kphp-assert-core.h"
@@ -14,6 +15,7 @@
 #include "runtime-light/server/http/init-functions.h"
 #include "runtime-light/server/init-functions.h"
 #include "runtime-light/server/job-worker/job-worker-server-state.h"
+#include "runtime-light/state/component-state.h"
 #include "runtime-light/state/instance-state.h"
 #include "runtime-light/streams/streams.h"
 #include "runtime-light/tl/tl-core.h"
@@ -21,6 +23,48 @@
 
 namespace {
 
+array<mixed> format_cli_argv() {
+  constexpr std::string_view INI_ARG_PHP_PREFIX = "-D";
+  constexpr std::string_view SHORT_ARG_PHP_PREFIX = "-";
+  constexpr std::string_view LONG_ARG_PHP_PREFIX = "--";
+  constexpr std::string_view RUNTIME_CONFIG_PHP_PREFIX = "--runtime_config";
+
+  array<mixed> argv;
+
+  const auto &component_state{ComponentState::get()};
+  argv.reserve(component_state.argc * 2, false);
+
+  for (const auto &ini_opt : component_state.ini_opts) {
+    argv.push_back(string{INI_ARG_PHP_PREFIX.data()});
+    argv.push_back(ini_opt.get_key());
+
+    const auto &value{ini_opt.get_value()};
+    if (!value.empty()) {
+      argv.push_back(string{"="});
+      argv.push_back(value);
+    }
+  }
+
+  for (const auto &cli_opt : component_state.cli_opts) {
+    const bool is_short_option = cli_opt.get_key().as_string().size() == 1;
+    argv.push_back((is_short_option ? string{SHORT_ARG_PHP_PREFIX.data()} : string{LONG_ARG_PHP_PREFIX.data()}).append(cli_opt.get_key()));
+
+    const auto &value{cli_opt.get_value()};
+    if (!value.empty()) {
+      argv.push_back(string{"="});
+      argv.push_back(value);
+    }
+  }
+
+  if (!component_state.runtime_config.empty()) {
+    argv.push_back(string{RUNTIME_CONFIG_PHP_PREFIX.data()});
+    argv.push_back(string{"="});
+    argv.push_back(component_state.runtime_config);
+  }
+
+  return argv;
+}
+
 void process_k2_invoke_http(tl::TLBuffer &tlb) noexcept {
   tl::K2InvokeHttp invoke_http{};
   if (!invoke_http.fetch(tlb)) {
@@ -44,8 +88,8 @@ task_t<uint64_t> init_kphp_cli_component() noexcept {
   { // TODO superglobals init
     auto &superglobals{InstanceState::get().php_script_mutable_globals_singleton.get_superglobals()};
     using namespace PhpServerSuperGlobalIndices;
-    superglobals.v$argc = static_cast<int64_t>(0);
-    superglobals.v$argv = array<mixed>{};
+    superglobals.v$argv = format_cli_argv();
+    superglobals.v$argc = superglobals.v$argv.as_array().size().size;
     superglobals.v$_SERVER.set_value(string{ARGC.data(), ARGC.size()}, superglobals.v$argc);
     superglobals.v$_SERVER.set_value(string{ARGV.data(), ARGV.size()}, superglobals.v$argv);
     superglobals.v$_SERVER.set_value(string{PHP_SELF.data(), PHP_SELF.size()}, string{});
diff --git a/runtime-light/stdlib/server/args-functions.cpp b/runtime-light/stdlib/server/args-functions.cpp
new file mode 100644
index 0000000000..a35604ec72
--- /dev/null
+++ b/runtime-light/stdlib/server/args-functions.cpp
@@ -0,0 +1,92 @@
+// Compiler for PHP (aka KPHP)
+// Copyright (c) 2025 LLC «V Kontakte»
+// Distributed under the GPL v3 License, see LICENSE.notice.txt
+
+#include <cctype>
+#include <cstdint>
+#include <functional>
+#include <string_view>
+
+#include "runtime-common/core/runtime-core.h"
+#include "runtime-light/state/instance-state.h"
+#include "runtime-light/stdlib/server/args-functions.h"
+
+Optional<array<mixed>> f$getopt(const string &short_options, const array<string> &long_options,
+                                [[maybe_unused]] Optional<std::optional<std::reference_wrapper<string>>> rest_index) noexcept {
+  if (const auto &instance_st{InstanceState::get()}; instance_st.image_kind() != ImageKind::CLI) [[unlikely]] {
+    return false;
+  }
+
+  enum class option_kind : uint8_t { flag, required, optional };
+
+  const auto &cli_opts{ComponentState::get().cli_opts};
+  array<mixed> options;
+
+  std::string_view short_options_view{short_options.c_str(), short_options.size()};
+  // parse short options
+  for (size_t pos = 0; pos < short_options_view.size(); ++pos) {
+    if (!std::isalnum(short_options_view[pos])) {
+      continue;
+    }
+    const string option{1, short_options_view[pos]};
+
+    option_kind kind{option_kind::flag};
+    // check that char followed by a colon
+    if (pos + 1 < short_options_view.size() && short_options_view[pos + 1] == ':') {
+      kind = option_kind::required;
+      pos++;
+
+      // check that char followed by a two colon
+      if (pos + 1 < short_options_view.size() && short_options_view[pos + 1] == ':') {
+        kind = option_kind::optional;
+        pos++;
+      }
+    }
+
+    if (!cli_opts.has_key(option)) [[unlikely]] {
+      // option has not been set
+      continue;
+    }
+
+    const mixed &value{cli_opts.get_value(option)};
+    if (kind == option_kind::optional) {
+      options.set_value(option, value.empty() ? false : value);
+    } else if (kind == option_kind::required && !value.empty()) {
+      options.set_value(option, value);
+    } else if (kind == option_kind::flag) {
+      options.set_value(option, false);
+    }
+  }
+
+  // parse long options
+  for (const auto &long_option : long_options) {
+    const std::string_view option_view{long_option.get_value().c_str(), long_option.get_value().size()};
+    uint8_t offset{};
+
+    option_kind kind{option_kind::flag};
+    if (option_view.ends_with("::")) {
+      kind = option_kind::optional;
+      offset = 2;
+    } else if (option_view.ends_with(":")) {
+      kind = option_kind::required;
+      offset = 1;
+    }
+    const string option{option_view.data(), static_cast<string::size_type>(option_view.size() - offset)};
+
+    if (!cli_opts.has_key(option)) [[unlikely]] {
+      // option has not been set
+      continue;
+    }
+
+    const mixed &value{cli_opts.get_value(option)};
+    if (kind == option_kind::optional) {
+      options.set_value(option, value.empty() ? false : value);
+    } else if (kind == option_kind::required && !value.empty()) {
+      options.set_value(option, value);
+    } else if (kind == option_kind::flag) {
+      options.set_value(option, false);
+    }
+  }
+
+  return options;
+}
diff --git a/runtime-light/stdlib/server/args-functions.h b/runtime-light/stdlib/server/args-functions.h
index 379be03a9d..6474956134 100644
--- a/runtime-light/stdlib/server/args-functions.h
+++ b/runtime-light/stdlib/server/args-functions.h
@@ -4,6 +4,9 @@
 
 #pragma once
 
+#include <functional>
+#include <optional>
+
 #include "runtime-common/core/runtime-core.h"
 #include "runtime-light/state/component-state.h"
 
@@ -11,3 +14,6 @@ inline Optional<string> f$ini_get(const string &key) noexcept {
   const auto &component_st{ComponentState::get()};
   return component_st.ini_opts.has_key(key) ? Optional<string>{component_st.ini_opts.get_value(key)} : Optional<string>{false};
 }
+
+Optional<array<mixed>> f$getopt(const string &short_options, const array<string> &long_options = {},
+                                Optional<std::optional<std::reference_wrapper<string>>> rest_index = {}) noexcept;
diff --git a/runtime-light/stdlib/stdlib.cmake b/runtime-light/stdlib/stdlib.cmake
index 9c51e338d5..73aa8e4828 100644
--- a/runtime-light/stdlib/stdlib.cmake
+++ b/runtime-light/stdlib/stdlib.cmake
@@ -22,6 +22,7 @@ prepend(
   rpc/rpc-tl-query.cpp
   rpc/rpc-tl-request.cpp
   serialization/serialization-state.cpp
+  server/args-functions.cpp
   server/http-functions.cpp
   string/regex-functions.cpp
   string/regex-state.cpp
diff --git a/runtime-light/stdlib/system/system-functions.h b/runtime-light/stdlib/system/system-functions.h
index 5b2b59ef09..1838d0f289 100644
--- a/runtime-light/stdlib/system/system-functions.h
+++ b/runtime-light/stdlib/system/system-functions.h
@@ -29,11 +29,6 @@ inline int64_t f$system(const string & /*command*/, int64_t & /*result_code*/ =
   php_critical_error("call to unsupported function");
 }
 
-inline Optional<array<mixed>> f$getopt(const string & /*options*/, const array<string> & /*longopts*/ = {},
-                                       Optional<int64_t> & /*rest_index*/ = SystemInstanceState::get().rest_index_dummy) {
-  php_critical_error("call to unsupported function");
-}
-
 inline int64_t f$numa_get_bound_node() noexcept {
   return -1;
 }