/**
* Устанавливает язык интерфейса в зависимости от настроек в браузере пользователя
*
* @param $default - site language
* @param bool $strict - always use the language specified in the config file?
*
* @return mixed
*/
public static function get_accepted_language($default, $strict = true)
{
if ($strict) {
return $default;
}
// Учитываем язык в настройках браузера
if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
$langs = HTTP_Header::parse_language_header($_SERVER['HTTP_ACCEPT_LANGUAGE']);
if (is_array($langs)) {
$langs = array_keys($langs);
return array_shift($langs);
} else {
return $default;
}
} else {
return $default;
}
}
/**
* Returns the quality of `$language` supplied, optionally ignoring
* wildcards if `$explicit` is set to a non-`FALSE` value. If the quality
* is not found, `0.0` is returned.
*
* // Accept-Language: en-us, en-gb; q=.7, en; q=.5
* $lang = $header->accepts_language_at_quality('en-gb');
* // $lang = (float) 0.7
*
* $lang2 = $header->accepts_language_at_quality('en-au');
* // $lang2 = (float) 0.5
*
* $lang3 = $header->accepts_language_at_quality('en-au', TRUE);
* // $lang3 = (float) 0.0
*
* @param string $language language to interrogate
* @param boolean $explicit explicit interrogation, `TRUE` ignores wildcards
* @return float
* @since 3.2.0
*/
public function accepts_language_at_quality($language, $explicit = FALSE)
{
if ($this->_accept_language === NULL) {
if ($this->offsetExists('Accept-Language')) {
$language_header = strtolower($this->offsetGet('Accept-Language'));
} else {
$language_header = NULL;
}
$this->_accept_language = HTTP_Header::parse_language_header($language_header);
}
// Normalize the language
$language_parts = explode('-', strtolower($language), 2);
if (isset($this->_accept_language[$language_parts[0]])) {
if (isset($language_parts[1])) {
if (isset($this->_accept_language[$language_parts[0]][$language_parts[1]])) {
return $this->_accept_language[$language_parts[0]][$language_parts[1]];
} elseif ($explicit === FALSE and isset($this->_accept_language[$language_parts[0]]['*'])) {
return $this->_accept_language[$language_parts[0]]['*'];
}
} elseif (isset($this->_accept_language[$language_parts[0]]['*'])) {
return $this->_accept_language[$language_parts[0]]['*'];
}
}
if ($explicit === FALSE and isset($this->_accept_language['*'])) {
return $this->_accept_language['*'];
}
return (double) 0;
}
/**
* Tests the `parse_language_header` method parses the Accept-Language header
* correctly
*
* @dataProvider provider_parse_language_header
*
* @param string $accept accept
* @param array $expected expected
* @return void
*/
public function test_parse_language_header($accept, array $expected)
{
$this->assertSame($expected, HTTP_Header::parse_language_header($accept));
}
