Several PHP application tips _php Tutorials

Source: Internet
Author: User
Tags ereg php redirect gtar
1. About PHP Redirection
1. About PHP Redirection
Method One: Header ("Location:index.php");
Method Two: Echo " window.location =\ "$PHP _self\"; ";
Method Three: Echo " ";

2. Get the visitor's browser
function Browse_infor ()
{
$browser = ""; $browserver = "";
$Browsers =array ("Lynx", "MOSAIC", "AOL", "Opera", "JAVA", "Macweb", "Webexplorer", "OmniWeb");
$Agent = $GLOBALS ["Http_user_agent"];
for ($i =0; $i <=7; $i + +)
{
if (Strpos ($Agent, $Browsers [$i]))
{
$browser = $Browsers [$i];
$browserver = "";
}
}
if (Ereg ("Mozilla", $Agent) &&!ereg ("MSIE", $Agent))
{
$temp =explode ("(", $Agent); $Part = $temp [0];
$temp =explode ("/", $Part); $browserver = $temp [1];
$temp =explode ("", $browserver); $browserver = $temp [0];
$browserver =preg_replace ("/([\d\.] +)/"," \1 ", $browserver);
$browserver = "$browserver";
$browser = "Netscape Navigator";
}
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);
$browserver = "$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);
$browserver = "$browserver";
$browser = "Internet Explorer";
}
if ($browser! = "")
{
$browseinfo = "$browser $browserver";
}
Else
{
$browseinfo = "Unknown";
}
return $browseinfo;
}
Call Method $browser=browseinfo (); return results directly

3. Get the visitor's operating system
function Osinfo () {
$os = "";
$Agent = $GLOBALS ["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 ', $Agent)) {
$os = "Windows NT";
}
ElseIf (eregi (' win ', $Agent) && eregi (' nt 5\.1 ', $Agent)) {
$os = "Windows XP";
}
ElseIf (eregi (' win ', $Agent) && ereg (' + ', $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;
}
Call Method $os=os_infor ();

4. File Format class
$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 ',
);
5. PHP generates Excel documents
Header ("Content-type:application/vnd.ms-excel");
Header ("Content-disposition:filename=test.xls");
echo "Test1\t";
echo "test2\t\n";
echo "Test1\t";
echo "test2\t\n";
echo "Test1\t";
echo "test2\t\n";
echo "Test1\t";
echo "test2\t\n";
echo "Test1\t";
echo "test2\t\n";
echo "Test1\t";
echo "test2\t\n";
?>
Change the file header to output. doc. xls file formats
6. Time comparison problem
Give a simple example: for example, a forum on the day post is marked with a new image.
Method One:
The DateTime field value in the database $db->rows[$i][date].
$today =time ();
$theDay =date ("y-m-d h:i:s", $today -24*3600);
$newTag = $db->rows[$i][date]>= $theDay? ":" ";
Method Two:
$newTag = $db->rows[$i][date]>=date ("y-m-d 00:00:00")? "

http://www.bkjia.com/PHPjc/318809.html www.bkjia.com true http://www.bkjia.com/PHPjc/318809.html techarticle 1, about PHP redirect 1, about PHP redirection method One: header ("Location:index.php"); method two: Echo "scrīptwindow.location=\" $PHP _self\ ";/scrīpt" ; Method Three: Echo "Metahttp-eq ...

  • Contact Us

    The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

    If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

    A Free Trial That Lets You Build Big!

    Start building with 50+ products and up to 12 months usage for Elastic Compute Service

    • Sales Support

      1 on 1 presale consultation

    • After-Sales Support

      24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.