add php_ini_loaded_file

Since we don't support ini files, returning FALSE seems within the bounds of this function.

hphp/idl/options.idl.json

@@ -664,6 +664,19 @@
                 }
             ]
         },
+        {
+            "name": "php_ini_loaded_file",
+            "desc": "Retrieve a path to the loaded php.ini file.",
+            "flags": [
+                "HasDocComment"
+            ],
+            "return": {
+                "type": "Variant",
+                "desc": "Check if a php.ini file is loaded, and retrieve its path."
+            },
+            "args": [
+            ]
+        },
         {
             "name": "php_ini_scanned_files",
             "desc": "php_ini_scanned_files() returns a comma-separated list of configuration files parsed after php.ini. These files are found in a directory defined by the --with-config-file-scan-dir option which is set during compilation.\n\nThe returned configuration files also include the path as declared in the --with-config-file-scan-dir option.",
@@ -966,4 +979,4 @@
     ],
     "classes": [
     ]
-}
+}

hphp/runtime/ext/ext_options.cpp

@@ -704,6 +704,10 @@ int64_t f_memory_get_usage(bool real_usage /* = false */) {
   return (int64_t)Process::GetProcessRSS(Process::GetProcessId()) * 1024 * 1024;
 }
 
+Variant f_php_ini_loaded_file() {
+  return false;
+}
+
 String f_php_ini_scanned_files() {
   throw NotSupportedException(__func__, "not using ini");
 }

hphp/runtime/ext/ext_options.h

@@ -62,6 +62,7 @@ String f_ini_set(CStrRef varname, CStrRef newvalue);
 int64_t f_memory_get_allocation();
 int64_t f_memory_get_peak_usage(bool real_usage = false);
 int64_t f_memory_get_usage(bool real_usage = false);
+Variant f_php_ini_loaded_file();
 String f_php_ini_scanned_files();
 String f_php_logo_guid();
 String f_php_sapi_name();

hphp/system/class_map.cpp

@@ -11487,6 +11487,11 @@ const char *g_class_map[] = {
   NULL,
   NULL,
   NULL,
+  (const char *)0x10006040, "php_ini_loaded_file", "", (const char*)0, (const char*)0,
+  "/**\n * ( excerpt from http://php.net/manual/en/function.php-ini-loaded-file.php\n * )\n *\n * Retrieve a path to the loaded php.ini file.\n *\n * @return     mixed   Check if a php.ini file is loaded, and retrieve its\n *                     path.\n */",
+  (const char *)0xffffffff /* KindOfUnknown: $t: Variant */, NULL,
+  NULL,
+  NULL,
   (const char *)0x10006040, "php_ini_scanned_files", "", (const char*)0, (const char*)0,
   "/**\n * ( excerpt from\n * http://php.net/manual/en/function.php-ini-scanned-files.php )\n *\n * php_ini_scanned_files() returns a comma-separated list of configuration\n * files parsed after php.ini. These files are found in a directory defined\n * by the --with-config-file-scan-dir option which is set during\n * compilation.\n *\n * The returned configuration files also include the path as declared in\n * the --with-config-file-scan-dir option.\n *\n * @return     string  Returns a comma-separated string of .ini files on\n *                     success. Each comma is followed by a newline. If the\n *                     directive --with-config-file-scan-dir wasn't set,\n *                     FALSE is returned. If it was set and the directory\n *                     was empty, an empty string is returned. If a file is\n *                     unrecognizable, the file will still make it into the\n *                     returned string but a PHP error will also result.\n *                     This PHP error will be seen both at compile time and\n *                     while using php_ini_scanned_files().\n */",
   (const char *)0x14 /* KindOfString */, NULL,

hphp/test/quick/ext_options_php_ini_loaded_file.php

@@ -0,0 +1,3 @@
+<?php
+
+var_dump(php_ini_loaded_file());

hphp/test/quick/ext_options_php_ini_loaded_file.php.expect

@@ -0,0 +1 @@
+bool(false)