function jetpack_is_mobile($kind = 'any', $return_matched_agent = false)
{
static $kinds = array('smart' => false, 'dumb' => false, 'any' => false);
static $first_run = true;
static $matched_agent = '';
$ua_info = new Jetpack_User_Agent_Info();
if (empty($_SERVER['HTTP_USER_AGENT']) || strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'ipad')) {
return false;
}
// Remove Samsung Galaxy tablets (SCH-I800) from being mobile devices
if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'sch-i800')) {
return false;
}
if ($ua_info->is_android_tablet() && $ua_info->is_kindle_touch() === false) {
return false;
}
if ($ua_info->is_blackberry_tablet()) {
return false;
}
if ($first_run) {
$first_run = false;
//checks for iPhoneTier devices & RichCSS devices
if ($ua_info->isTierIphone() || $ua_info->isTierRichCSS()) {
$kinds['smart'] = true;
$matched_agent = $ua_info->matched_agent;
}
if (!$kinds['smart']) {
// if smart, we are not dumb so no need to check
$dumb_agents = $ua_info->dumb_agents;
$agent = strtolower($_SERVER['HTTP_USER_AGENT']);
foreach ($dumb_agents as $dumb_agent) {
if (false !== strpos($agent, $dumb_agent)) {
$kinds['dumb'] = true;
$matched_agent = $dumb_agent;
break;
}
}
if (!$kinds['dumb']) {
if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
$kinds['dumb'] = true;
$matched_agent = 'http_x_wap_profile';
} elseif (isset($_SERVER['HTTP_ACCEPT']) && (preg_match('/wap\\.|\\.wap/i', $_SERVER['HTTP_ACCEPT']) || false !== strpos(strtolower($_SERVER['HTTP_ACCEPT']), 'application/vnd.wap.xhtml+xml'))) {
$kinds['dumb'] = true;
$matched_agent = 'vnd.wap.xhtml+xml';
}
}
}
if ($kinds['dumb'] || $kinds['smart']) {
$kinds['any'] = true;
}
}
if ($return_matched_agent) {
return $matched_agent;
}
return $kinds[$kind];
}
/**
* Determine if the current User Agent matches the passed $kind
*
* @param string $kind Category of mobile device to check for.
* Either: any, dumb, smart.
* @param bool $return_matched_agent Boolean indicating if the UA should be returned
*
* @return bool|string Boolean indicating if current UA matches $kind. If
* $return_matched_agent is true, returns the UA string
*/
function jetpack_is_mobile($kind = 'any', $return_matched_agent = false)
{
static $kinds = array('smart' => false, 'dumb' => false, 'any' => false);
static $first_run = true;
static $matched_agent = '';
// If an invalid kind is passed in, reset it to default.
if (!isset($kinds[$kind])) {
$kind = 'any';
}
if (function_exists('apply_filters')) {
/**
* Filter the value of jetpack_is_mobile before it is calculated.
*
* Passing a truthy value to the filter will short-circuit determining the
* mobile type, returning the passed value instead.
*
* @since 4.2.0
*
* @param bool|string $matches Boolean if current UA matches $kind or not. If
* $return_matched_agent is true, should return the UA string
* @param string $kind Category of mobile device being checked
* @param bool $return_matched_agent Boolean indicating if the UA should be returned
*/
$pre = apply_filters('pre_jetpack_is_mobile', null, $kind, $return_matched_agent);
if (null !== $pre) {
return $pre;
}
}
$ua_info = new Jetpack_User_Agent_Info();
if (empty($_SERVER['HTTP_USER_AGENT']) || strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'ipad')) {
return false;
}
// Remove Samsung Galaxy tablets (SCH-I800) from being mobile devices
if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'sch-i800')) {
return false;
}
if ($ua_info->is_android_tablet() && $ua_info->is_kindle_touch() === false) {
return false;
}
if ($ua_info->is_blackberry_tablet()) {
return false;
}
if ($first_run) {
$first_run = false;
//checks for iPhoneTier devices & RichCSS devices
if ($ua_info->isTierIphone() || $ua_info->isTierRichCSS()) {
$kinds['smart'] = true;
$matched_agent = $ua_info->matched_agent;
}
if (!$kinds['smart']) {
// if smart, we are not dumb so no need to check
$dumb_agents = $ua_info->dumb_agents;
$agent = strtolower($_SERVER['HTTP_USER_AGENT']);
foreach ($dumb_agents as $dumb_agent) {
if (false !== strpos($agent, $dumb_agent)) {
$kinds['dumb'] = true;
$matched_agent = $dumb_agent;
break;
}
}
if (!$kinds['dumb']) {
if (isset($_SERVER['HTTP_X_WAP_PROFILE'])) {
$kinds['dumb'] = true;
$matched_agent = 'http_x_wap_profile';
} elseif (isset($_SERVER['HTTP_ACCEPT']) && (preg_match('/wap\\.|\\.wap/i', $_SERVER['HTTP_ACCEPT']) || false !== strpos(strtolower($_SERVER['HTTP_ACCEPT']), 'application/vnd.wap.xhtml+xml'))) {
$kinds['dumb'] = true;
$matched_agent = 'vnd.wap.xhtml+xml';
}
}
}
if ($kinds['dumb'] || $kinds['smart']) {
$kinds['any'] = true;
}
}
$value = $kinds[$kind];
if ($return_matched_agent) {
$value = $matched_agent;
}
if (function_exists('apply_filters')) {
/**
* Filter the value of jetpack_is_mobile
*
* @since 4.2.0
*
* @param bool|string $matches Boolean if current UA matches $kind or not. If
* $return_matched_agent is true, should return the UA string
* @param string $kind Category of mobile device being checked
* @param bool $return_matched_agent Boolean indicating if the UA should be returned
*/
$value = apply_filters('jetpack_is_mobile', $value, $kind, $return_matched_agent);
}
return $value;
}