PHP function implementation to determine whether mobile terminal access_PHP tutorial

PHP function implementation to determine whether mobile access is available

This article shares with you a PHP function to determine whether mobile access is available. It was collected before and is posted here. Recommended To my friends.

I forgot where I got the function. I accidentally found it in a package and saved it temporarily

The code is as follows:

/**
* Whether to access via mobile terminal
*
* @return bool
*/
function isMobile()
{
// If there is HTTP_X_WAP_PROFILE, it must be a mobile device
if (isset ($_SERVER['HTTP_X_WAP_PROFILE']))
{
return true;
}
// If the via information contains wap, it must be a mobile device. Some service providers will block this information
if (isset ($_SERVER['HTTP_VIA']))
{
// If not found, it is false, otherwise it is true
return stristr($_SERVER['HTTP_VIA'], "wap") ? true : false;
}
// Brainless method, determine the client flag sent by the mobile phone, the compatibility needs to be improved
if (isset ($_SERVER['HTTP_USER_AGENT']))
{
$clientkeywords = array ('nokia',
'sony',
'ericsson',
'mot',
'samsung',
'htc',
'sgh',
'lg',
'sharp',
'sie-',
'philips',
'panasonic',
'alcatel',
'lenovo',
'iphone',
'ipod',
'blackberry',
'meizu',
'android',
'netfront',
'symbian',
'ucweb',
'windowsce',
'palm',
'operamini',
'operamobi',
'openwave',
'nexusone',
'cldc',
'midp',
'wap',
'mobile'
);
// Find keywords for mobile browsers from HTTP_USER_AGENT
if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT'])))
{
return true;
}
}
// Agreement method, because it may be inaccurate, leave it to the final judgment
if (isset ($_SERVER['HTTP_ACCEPT']))
{
// If it only supports wml and does not support html, it must be a mobile device
// If wml and html are supported but wml comes before html, it is a mobile device
if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html'))))
{
return true;
}
}
return false;
}

A very simple and practical function, shared with everyone, I hope you will like it.

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