//获取IP zuolo:由于防火墙的原因 REMOTE_ADDR 就是服务器外网IP
function GetIP() { if ($_SERVER["HTTP_X_FORWARDED_FOR"]) $ip = $_SERVER["HTTP_X_FORWARDED_FOR"]; else if ($_SERVER["HTTP_CLIENT_IP"]) $ip = $_SERVER["HTTP_CLIENT_IP"]; else if ($_SERVER["REMOTE_ADDR"]) $ip = $_SERVER["REMOTE_ADDR"]; else if (getenv("HTTP_X_FORWARDED_FOR")) $ip = getenv("HTTP_X_FORWARDED_FOR"); else if (getenv("HTTP_CLIENT_IP")) $ip = getenv("HTTP_CLIENT_IP"); else if (getenv("REMOTE_ADDR")) $ip = getenv("REMOTE_ADDR"); else $ip = "Unknown"; return $ip; } ?>
function check_date($date) { //检查日期是否合法日期 $dateArr = explode("-", $date); if (is_numeric($dateArr[0]) && is_numeric($dateArr[1]) && is_numeric($dateArr[2])) { return checkdate($dateArr[1],$dateArr[2],$dateArr[0]); } return false; } function check_time($time) { //检查时间是否合法时间 $timeArr = explode(":", $time); if (is_numeric($timeArr[0]) && is_numeric($timeArr[1]) && is_numeric($timeArr[2])) { if (($timeArr[0] >= 0 && $timeArr[0] <= 23) && ($timeArr[1] >= 0 && $timeArr[1] <= 59) && ($timeArr[2] >= 0 && $timeArr[2] <= 59)) return true; else return false; } return false; } function DateDiff($date1, $date2, $unit = "") { //时间比较函数,返回两个日期相差几秒、几分钟、几小时或几天 switch ($unit) { case 's': $dividend = 1; break; case 'i': $dividend = 60; break; case 'h': $dividend = 3600; break; case 'd': $dividend = 86400; break; default: $dividend = 86400; } $time1 = strtotime($date1); $time2 = strtotime($date2); if ($time1 && $time2) return (float)($time1 - $time2) / $dividend; return false; } ?>
PHP重定向
方法一:header("Location: index.php");
方法二:echo "
方法三:echo ““;
?>
//获取访问者浏览器
function browse_infor()
{
$browser="";$browserver="";
$Browsers =array("Lynx","MOSAIC","AOL","Opera","JAVA","MacWeb","WebExplorer","OmniWeb");
$Agent = $_SERVER["HTTP_USER_AGENT"];
for ($i=0; $i<=7; $i++) {
if (strpos($Agent,$Browsers[$i])) {
$browser = $Browsers[$i];
$browserver ="";
}
}
// if (ereg("Mozilla",$Agent) && !ereg("MSIE",$Agent)) { bug:会把谷歌浏览器Chrome误认为Netscape Navigator
// $temp =explode("(", $Agent); $Part=$temp[0];
// $temp =explode("/", $Part); $browserver=$temp[1];
// $temp =explode(" ",$browserver); $browserver=$temp[0];
// $browserver =preg_replace("/([d.]+)/","1",$browserver);
// $browser = "Netscape Navigator";
// }
if (ereg("Mozilla",$Agent) && ereg("Chrome",$Agent)) {
$browserver=substr($Agent,strripos($Agent, "Chrome"));
$browserver=substr($browserver,7,(strripos($browserver," ")-7));
$browser = "Google Chrome";
}
if (ereg("Mozilla",$Agent) && ereg("Opera",$Agent)) {
$temp =explode("(", $Agent); $Part=$temp[1];
$temp =explode(")", $Part); $browserver=$temp[1];
$temp =explode(" ",$browserver);$browserver=$temp[2];
$browserver =preg_replace("/([d.]+)/","1",$browserver);
$browser = "Opera";
}
if (ereg("Mozilla",$Agent) && ereg("MSIE",$Agent)) {
$temp = explode("(", $Agent); $Part=$temp[1];
$temp = explode(";",$Part); $Part=$temp[1];
$temp = explode(" ",$Part);$browserver=$temp[2];
//$browserver =preg_replace("/([d.]+)/","1",$browserver); bug:在IE7中会把版本号7.0转为710
$browser = "Internet Explorer";
}
if ($browser!="") {
$browseinfo = "$browser $browserver";
}
else {
$browseinfo = "Unknown";
}
return $browseinfo;
}
//获取访问者操作系统
function osinfo() {
$os="";
$Agent = $_SERVER["HTTP_USER_AGENT"];
if (eregi('win',$Agent) && strpos($Agent, '95')) {
$os="Windows 95";
}
elseif (eregi('win 9x',$Agent) && strpos($Agent, '4.90')) {
$os="Windows ME";
}
elseif (eregi('win',$Agent) && ereg('98',$Agent)) {
$os="Windows 98";
}
elseif (eregi('win',$Agent) && eregi('nt 5.0',$Agent)) {
$os="Windows 2000";
}
elseif (eregi('win',$Agent) && eregi('nt 5.1',$Agent)) {
$os="Windows XP";
}
elseif (eregi('win',$Agent) && eregi('nt 6.0',$Agent)) {
$os="Windows Vista";
}
elseif (eregi('win',$Agent) && eregi('nt',$Agent)) {
$os="Windows NT";
}
elseif (eregi('win',$Agent) && ereg('32',$Agent)) {
$os="Windows 32";
}
elseif (eregi('linux',$Agent)) {
$os="Linux";
}
elseif (eregi('unix',$Agent)) {
$os="Unix";
}
elseif (eregi('sun',$Agent) && eregi('os',$Agent)) {
$os="SunOS";
}
elseif (eregi('ibm',$Agent) && eregi('os',$Agent)) {
$os="IBM OS/2";
}
elseif (eregi('Mac',$Agent) && eregi('PC',$Agent)) {
$os="Macintosh";
}
elseif (eregi('PowerPC',$Agent)) {
$os="PowerPC";
}
elseif (eregi('AIX',$Agent)) {
$os="AIX";
}
elseif (eregi('HPUX',$Agent)) {
$os="HPUX";
}
elseif (eregi('NetBSD',$Agent)) {
$os="NetBSD";
}
elseif (eregi('BSD',$Agent)) {
$os="BSD";
}
elseif (ereg('OSF1',$Agent)) {
$os="OSF1";
}
elseif (ereg('IRIX',$Agent)) {
$os="IRIX";
}
elseif (eregi('FreeBSD',$Agent)) {
$os="FreeBSD";
}
if ($os=='') $os = "Unknown";
return $os;
}
文件格式类
$mime_types = array(
'gif' => ‘image/gif’,
‘jpg’ => ‘image/jpeg’,
‘jpeg’ => ‘image/jpeg’,
‘jpe’ => ‘image/jpeg’,
‘bmp’ => ‘image/bmp’,
‘png’ => ‘image/png’,
‘tif’ => ‘image/tiff’,
‘tiff’ => ‘image/tiff’,
‘pict’ => ‘image/x-pict’,
‘pic’ => ‘image/x-pict’,
‘pct’ => ‘image/x-pict’,
‘tif’ => ‘image/tiff’,
‘tiff’ => ‘image/tiff’,
‘psd’ => ‘image/x-photoshop’,
‘swf’ => ‘application/x-shockwave-flash’,
‘js’ => ‘application/x-javascrīpt’,
‘pdf’ => ‘application/pdf’,
‘ps’ => ‘application/postscrīpt’,
‘eps’ => ‘application/postscrīpt’,
‘ai’ => ‘application/postscrīpt’,
‘wmf’ => ‘application/x-msmetafile’,
‘css’ => ‘text/css’,
‘htm’ => ‘text/html’,
‘html’ => ‘text/html’,
‘txt’ => ‘text/plain’,
‘xml’ => ‘text/xml’,
‘wml’ => ‘text/wml’,
‘wbmp’ => ‘image/vnd.wap.wbmp’,
‘mid’ => ‘audio/midi’,
‘wav’ => ‘audio/wav’,
‘mp3’ => ‘audio/mpeg’,
‘mp2’ => ‘audio/mpeg’,
‘avi’ => ‘video/x-msvideo’,
‘mpeg’ => ‘video/mpeg’,
‘mpg’ => ‘video/mpeg’,
‘qt’ => ‘video/quicktime’,
‘mov’ => ‘video/quicktime’,
‘lha’ => ‘application/x-lha’,
‘lzh’ => ‘application/x-lha’,
‘z’ => ‘application/x-compress’,
‘gtar’ => ‘application/x-gtar’,
‘gz’ => ‘application/x-gzip’,
‘gzip’ => ‘application/x-gzip’,
‘tgz’ => ‘application/x-gzip’,
‘tar’ => ‘application/x-tar’,
‘bz2’ => ‘application/bzip2’,
‘zip’ => ‘application/zip’,
‘arj’ => ‘application/x-arj’,
‘rar’ => ‘application/x-rar-compressed’,
‘hqx’ => ‘application/mac-binhex40’,
‘sit’ => ‘application/x-stuffit’,
‘bin’ => ‘application/x-macbinary’,
‘uu’ => ‘text/x-uuencode’,
‘uue’ => ‘text/x-uuencode’,
‘latex’=> ‘application/x-latex’,
‘ltx’ => ‘application/x-latex’,
‘tcl’ => ‘application/x-tcl’,
‘pgp’ => ‘application/pgp’,
‘asc’ => ‘application/pgp’,
‘exe’ => ‘application/x-msdownload’,
‘doc’ => ‘application/msword’,
‘rtf’ => ‘application/rtf’,
‘xls’ => ‘application/vnd.ms-excel’,
‘ppt’ => ‘application/vnd.ms-powerpoint’,
‘mdb’ => ‘application/x-msaccess’,
‘wri’ => ‘application/x-mswrite’,
);
?>
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