返回时间戳差值部分,年、月、日
function get_date_diff($startstamp, $endstamp, $return = 'm')
{
$y = date('Y', $endstamp) - date('Y', $startstamp);
$m = date('m', $endstamp) - date('m', $startstamp);
switch ($return) {
case 'y':
if ($y <= 1) {
$y = $m / 12;
}
$string = $y;
break;
case 'm':
$string = $y * 12 + $m;
break;
case 'd':
$string = ($endstamp - $startstamp) / 86400;
break;
}
return $string;
}
判断当前是否为https
function is_https()
{
if ((isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on')) {
return true;
} elseif (isset($_SERVER['REQUEST_SCHEME']) && strtolower($_SERVER['REQUEST_SCHEME']) == 'https') {
return true;
} elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https') {
return true;
} elseif (isset($_SERVER['HTTP_X_CLIENT_SCHEME']) && strtolower($_SERVER['HTTP_X_CLIENT_SCHEME']) == 'https') {
return true;
} else {
return false;
}
}
获取当前完整URL地址
function get_current_url()
{
$http_type = is_https() ? 'https://' : 'http://';
return $http_type . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
}
获取当前访问地址
function get_http_url($noport = false)
{
if (is_https()) {
$url = 'https://' . $_SERVER['HTTP_HOST'];
} else {
$url = 'http://' . $_SERVER['HTTP_HOST'];
}
if ($noport) {
$url = str_replace(':' . $_SERVER['SERVER_PORT'], '', $url);
}
return $url;
}
获取当前访问域名
function get_http_host($noport = true)
{
if ($noport) {
return str_replace(':' . $_SERVER['SERVER_PORT'], '', $_SERVER['HTTP_HOST']);
} else {
return $_SERVER['HTTP_HOST'];
}
}
清洗html代码的空白符号
function clear_html_blank($string)
{
$string = str_replace("\r\n", '', $string);
$string = str_replace("\n", '', $string);
$string = str_replace("\t", '', $string);
$string = str_replace(' ', '', $string);
$string = str_replace(' ', '', $string);
$string = preg_replace('/\s+/', ' ', $string);
return $string;
}
是否为移动设备
function is_mobile()
{
$os = get_user_os();
if ($os == 'Android' || $os == 'iPhone' || $os == 'Windows Phone' || $os == 'iPad') {
return true;
}
}
返回时间戳差值部分,年、月、日
function get_date_diff($startstamp, $endstamp, $return = 'm')
{
$y = date('Y', $endstamp) - date('Y', $startstamp);
$m = date('m', $endstamp) - date('m', $startstamp);
switch ($return) {
case 'y':
if ($y <= 1) {
$y = $m / 12;
}
$string = $y;
break;
case 'm':
$string = $y * 12 + $m;
break;
case 'd':
$string = ($endstamp - $startstamp) / 86400;
break;
}
return $string;
}
获取用户浏览器类型
function get_user_bs($bs = null)
{
if (isset($_SERVER["HTTP_USER_AGENT"])) {
$user_agent = strtolower($_SERVER["HTTP_USER_AGENT"]);
} else {
return null;
}
if ($bs) {
if (strpos($user_agent, strtolower($bs))) {
return true;
} else {
return false;
}
}
if (strpos($user_agent, 'micromessenger')) {
$user_bs = 'Weixin';
} elseif (strpos($user_agent, 'qq')) {
$user_bs = 'QQ';
} elseif (strpos($user_agent, 'weibo')) {
$user_bs = 'Weibo';
} elseif (strpos($user_agent, 'alipayclient')) {
$user_bs = 'Alipay';
} elseif (strpos($user_agent, 'trident/7.0')) {
$user_bs = 'IE11';
} elseif (strpos($user_agent, 'trident/6.0')) {
$user_bs = 'IE10';
} elseif (strpos($user_agent, 'trident/5.0')) {
$user_bs = 'IE9';
} elseif (strpos($user_agent, 'trident/4.0')) {
$user_bs = 'IE8';
} elseif (strpos($user_agent, 'msie 7.0')) {
$user_bs = 'IE7';
} elseif (strpos($user_agent, 'msie 6.0')) {
$user_bs = 'IE6';
} elseif (strpos($user_agent, 'edge')) {
$user_bs = 'Edge';
} elseif (strpos($user_agent, 'firefox')) {
$user_bs = 'Firefox';
} elseif (strpos($user_agent, 'chrome') || strpos($user_agent, 'android')) {
$user_bs = 'Chrome';
} elseif (strpos($user_agent, 'safari')) {
$user_bs = 'Safari';
} elseif (strpos($user_agent, 'mj12bot')) {
$user_bs = 'MJ12bot';
} else {
$user_bs = 'Other';
}
return $user_bs;
}
获取用户操作系统类型
function get_user_os($osstr = null)
{
if (isset($_SERVER["HTTP_USER_AGENT"])) {
$user_agent = strtolower($_SERVER["HTTP_USER_AGENT"]);
} else {
return null;
}
if ($osstr) {
if (strpos($user_agent, strtolower($osstr))) {
return true;
} else {
return false;
}
}
if (strpos($user_agent, 'windows nt 5.0')) {
$user_os = 'Windows 2000';
} elseif (strpos($user_agent, 'windows nt 9')) {
$user_os = 'Windows 9X';
} elseif (strpos($user_agent, 'windows nt 5.1')) {
$user_os = 'Windows XP';
} elseif (strpos($user_agent, 'windows nt 5.2')) {
$user_os = 'Windows 2003';
} elseif (strpos($user_agent, 'windows nt 6.0')) {
$user_os = 'Windows Vista';
} elseif (strpos($user_agent, 'windows nt 6.1')) {
$user_os = 'Windows 7';
} elseif (strpos($user_agent, 'windows nt 6.2')) {
$user_os = 'Windows 8';
} elseif (strpos($user_agent, 'windows nt 6.3')) {
$user_os = 'Windows 8.1';
} elseif (strpos($user_agent, 'windows nt 10')) {
$user_os = 'Windows 10';
} elseif (strpos($user_agent, 'windows phone')) {
$user_os = 'Windows Phone';
} elseif (strpos($user_agent, 'android')) {
$user_os = 'Android';
} elseif (strpos($user_agent, 'iphone')) {
$user_os = 'iPhone';
} elseif (strpos($user_agent, 'ipad')) {
$user_os = 'iPad';
} elseif (strpos($user_agent, 'mac')) {
$user_os = 'Mac';
} elseif (strpos($user_agent, 'sunos')) {
$user_os = 'Sun OS';
} elseif (strpos($user_agent, 'bsd')) {
$user_os = 'BSD';
} elseif (strpos($user_agent, 'ubuntu')) {
$user_os = 'Ubuntu';
} elseif (strpos($user_agent, 'linux')) {
$user_os = 'Linux';
} elseif (strpos($user_agent, 'unix')) {
$user_os = 'Unix';
} else {
$user_os = 'Other';
}
return $user_os;
}
生成系统AUTH_KEY
function build_auth_key() {
$chars = 'abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$chars .= '`~!@#$%^&*()_+-=[]{};:"|,.<>/?';
$chars = str_shuffle($chars);
return substr($chars, 0, 32);
}
系统非常规MD5加密方法
function user_md5($str = '', $key = '') {
return '' == $str ? '' : md5(sha1($str) . $key);
}
字符串截取,支持中文和其他编码
function re_substr($str, $start = 0, $length, $suffix = true, $charset = "utf-8") {
if (function_exists("mb_substr"))
$slice = mb_substr($str, $start, $length, $charset);
elseif (function_exists('iconv_substr')) {
$slice = iconv_substr($str, $start, $length, $charset);
} else {
$re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
$re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
$re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
preg_match_all($re[$charset], $str, $match);
$slice = join("", array_slice($match[0], $start, $length));
}
return $suffix ? $slice . '...' : $slice;
}
传入时间戳,计算距离现在的时间
function word_time($time = 0) {
$time = (int) substr($time, 0, 10);
$int = time() - $time;
$str = '';
if ($int <= 2) {
$str = sprintf('刚刚', $int);
} elseif ($int < 60) {
$str = sprintf('%d秒前', $int);
} elseif ($int < 3600) {
$str = sprintf('%d分钟前', floor($int / 60));
} elseif ($int < 86400) {
$str = sprintf('%d小时前', floor($int / 3600));
} elseif ($int < 1728000) {
$str = sprintf('%d天前', floor($int / 86400));
} else {
$str = date('Y-m-d H:i:s', $time);
}
return $str;
}
检测是否是手机访问
function is_mobile_client() {
$useragent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
$useragent_commentsblock = preg_match('|\(.*?\)|', $useragent, $matches) > 0 ? $matches[0] : '';
function _is_mobile($substrs, $text) {
foreach ($substrs as $substr)
if (false !== strpos($text, $substr)) {
return true;
}
return false;
}
$mobile_os_list = array('Google Wireless Transcoder', 'Windows CE', 'WindowsCE', 'Symbian', 'Android', 'armv6l', 'armv5', 'Mobile', 'CentOS', 'mowser', 'AvantGo', 'Opera Mobi', 'J2ME/MIDP', 'Smartphone', 'Go.Web', 'Palm', 'iPAQ');
$mobile_token_list = array('Profile/MIDP', 'Configuration/CLDC-', '160×160', '176×220', '240×240', '240×320', '320×240', 'UP.Browser', 'UP.Link', 'SymbianOS', 'PalmOS', 'PocketPC', 'SonyEricsson', 'Nokia', 'BlackBerry', 'Vodafone', 'BenQ', 'Novarra-Vision', 'Iris', 'NetFront', 'HTC_', 'Xda_', 'SAMSUNG-SGH', 'Wapaka', 'DoCoMo', 'iPhone', 'iPod');
$found_mobile = _is_mobile($mobile_os_list, $useragent_commentsblock) ||
_is_mobile($mobile_token_list, $useragent);
if ($found_mobile) {
return true;
} else {
return false;
}
}
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