- Fix unsetting of open_basedir, safe_mode_exec_dir and user_dir with

  "php_admin_value <ini option> none"
- Fixes bug #22220

Author: foobar

main/main.c

@@ -301,15 +301,15 @@ PHP_INI_BEGIN()
 	STD_PHP_INI_ENTRY("gpc_order",				"GPC",		PHP_INI_ALL,		OnUpdateStringUnempty,	gpc_order,				php_core_globals,	core_globals)
 	STD_PHP_INI_ENTRY("include_path",			PHP_INCLUDE_PATH,		PHP_INI_ALL,		OnUpdateStringUnempty,	include_path,			php_core_globals,	core_globals)
 	PHP_INI_ENTRY("max_execution_time",			"30",		PHP_INI_ALL,			OnUpdateTimeout)
-	STD_PHP_INI_ENTRY("open_basedir",			NULL,		PHP_INI_SYSTEM,		OnUpdateStringUnempty,	open_basedir,			php_core_globals,	core_globals)
-	STD_PHP_INI_ENTRY("safe_mode_exec_dir",		"1",		PHP_INI_SYSTEM,		OnUpdateString,			safe_mode_exec_dir,		php_core_globals,	core_globals)
+	STD_PHP_INI_ENTRY("open_basedir",			NULL,		PHP_INI_SYSTEM,		OnUpdateString,			open_basedir,			php_core_globals,	core_globals)
+	STD_PHP_INI_ENTRY("safe_mode_exec_dir",		"",			PHP_INI_SYSTEM,		OnUpdateString,			safe_mode_exec_dir,		php_core_globals,	core_globals)
 
 	STD_PHP_INI_BOOLEAN("file_uploads",			"1",		PHP_INI_SYSTEM,		OnUpdateBool,			file_uploads,			php_core_globals,	core_globals)
 	STD_PHP_INI_ENTRY("upload_max_filesize",	"2M",		PHP_INI_SYSTEM|PHP_INI_PERDIR,		OnUpdateInt,			upload_max_filesize,	php_core_globals,	core_globals)
 	STD_PHP_INI_ENTRY("post_max_size",			"8M",		PHP_INI_SYSTEM|PHP_INI_PERDIR,		OnUpdateInt,			post_max_size,			sapi_globals_struct,sapi_globals)
 	STD_PHP_INI_ENTRY("upload_tmp_dir",			NULL,		PHP_INI_SYSTEM,		OnUpdateStringUnempty,	upload_tmp_dir,			php_core_globals,	core_globals)
 
-	STD_PHP_INI_ENTRY("user_dir",				NULL,		PHP_INI_SYSTEM,		OnUpdateStringUnempty,	user_dir,				php_core_globals,	core_globals)
+	STD_PHP_INI_ENTRY("user_dir",				NULL,		PHP_INI_SYSTEM,		OnUpdateString,			user_dir,				php_core_globals,	core_globals)
 	STD_PHP_INI_ENTRY("variables_order",		NULL,		PHP_INI_ALL,		OnUpdateStringUnempty,	variables_order,		php_core_globals,	core_globals)
 
 	STD_PHP_INI_ENTRY("error_append_string",	NULL,		PHP_INI_ALL,		OnUpdateString,			error_append_string,	php_core_globals,	core_globals)