// Set a default country/timezone in installer, checking HTTP_ACCEPT_LANGUAGE #PSTEST-890

2012-02-29 09:02:36 +00:00
parent 320e44d464
commit c402fbc7e2
3 changed files with 45 additions and 35 deletions
@@ -178,4 +178,28 @@ class InstallLanguages

 		return $countries;
 	}
+
+	/**
+	 * Parse HTTP_ACCEPT_LANGUAGE and get first data matching list of available languages
+	 *
+	 * @return bool|array
+	 */
+	public function detectLanguage()
+	{
+		// This code is from a php.net comment : http://www.php.net/manual/fr/reserved.variables.server.php#94237
+		$split_languages = explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
+		if (!is_array($split_languages))
+			return false;
+
+		foreach ($split_languages as $lang)
+		{
+			$pattern = '/^(?P<primarytag>[a-zA-Z]{2,8})'.
+				'(?:-(?P<subtag>[a-zA-Z]{2,8}))?(?:(?:;q=)'.
+				'(?P<quantifier>\d\.\d))?$/';
+			if (preg_match($pattern, $lang, $m))
+				if (in_array($m['primarytag'], $this->getIsoList()))
+					return $m;
+		}
+		return false;
+	}
 }