Do not read from argv on non-CLI SAPIs

SymfonyRuntime.php

@@ -95,7 +95,7 @@ public function __construct(array $options = [])
 
         if (isset($options['env'])) {
             $_SERVER[$envKey] = $options['env'];
-        } elseif (isset($_SERVER['argv']) && class_exists(ArgvInput::class)) {
+        } elseif (empty($_GET) && isset($_SERVER['argv']) && class_exists(ArgvInput::class)) {
             $this->options = $options;
             $this->getInput();
         }
@@ -216,6 +216,10 @@ protected static function register(GenericRuntime $runtime): GenericRuntime
 
     private function getInput(): ArgvInput
     {
+        if (!empty($_GET) && filter_var(ini_get('register_argc_argv'), \FILTER_VALIDATE_BOOL)) {
+            throw new \Exception('CLI applications cannot be run safely on non-CLI SAPIs with register_argc_argv=On.');
+        }
+
         if (null !== $this->input) {
             return $this->input;
         }

Tests/phpt/kernel.php

@@ -17,19 +17,21 @@
 
 class TestKernel implements HttpKernelInterface
 {
+    private $env;
     private $var;
 
-    public function __construct(string $var)
+    public function __construct(string $env, string $var)
     {
+        $this->env = $env;
         $this->var = $var;
     }
 
     public function handle(Request $request, $type = self::MASTER_REQUEST, $catch = true): Response
     {
-        return new Response('OK Kernel '.$this->var);
+        return new Response('OK Kernel (env='.$this->env.') '.$this->var);
     }
 }
 
 return function (array $context) {
-    return new TestKernel($context['SOME_VAR']);
+    return new TestKernel($context['APP_ENV'], $context['SOME_VAR']);
 };

Tests/phpt/kernel.phpt

@@ -9,4 +9,4 @@ require $_SERVER['SCRIPT_FILENAME'] = __DIR__.'/kernel.php';
 
 ?>
 --EXPECTF--
-OK Kernel foo_bar
+OK Kernel (env=dev) foo_bar

Tests/phpt/kernel_register_argc_argv.phpt

@@ -0,0 +1,18 @@
+--TEST--
+Test HttpKernelInterface with register_argc_argv=1
+--INI--
+display_errors=1
+register_argc_argv=1
+--FILE--
+<?php
+
+// emulating PHP behavior with register_argc_argv=1
+$_GET['-e_test'] = '';
+$_SERVER['argc'] = 1;
+$_SERVER['argv'] = [' ', '-e', 'test'];
+
+require $_SERVER['SCRIPT_FILENAME'] = __DIR__.'/kernel.php';
+
+?>
+--EXPECTF--
+OK Kernel (env=dev) foo_bar