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<?php
class ClientGetObj{
function getOS(){
global $_SERVER;
$agent=$_SERVER["HTTP_USER_AGENT"];
$os=false;
if(eregi("win",$agent)&&strpos($agent,"95")){
$os="Windows 95";
}else if(eregi("win 9x",$agent)&&strpos($agent,"4.90")){
$os="Windows ME";
}else if(eregi("win",$agent)&&eregi('98',$agent)){
$os="Windows 98";
}else if(eregi("win",$agent)&&eregi('nt 5.1',$agent)){
$os="Windows XP";
}else if(eregi("win",$agent)&&eregi('nt 5',$agent)){
$os="Windows 2000";
}else if(eregi("win",$agent)&&eregi('nt',$agent)){
$os="Windows NT";
}else if(eregi("win",$agent)&&eregi('32',$agent)){
$os="Windows 32";
}else if(eregi("linux",$agent)){
$os="Linux";
}else if(eregi("unix",$agent)){
$os="Unix";
}else if(eregi("sun",$agent)&&eregi("os",$agent)){
$os="SunOS";
}else if(eregi("ibm",$agent)&&eregi("os",$agent)){
$os="IBM OS/2";
}else if(eregi("mac",$agent)&&eregi("pc",$agent)){
$os="Macintosh";
}else if(eregi("powerpc",$agent)){
$os="PowerPC";
}else if(eregi("aix",$agent)){
$os="AIX";
}else if(eregi("HPUX",$agent)){
$os="HPUX";
}else if(eregi("netbsd",$agent)){
$os="NetBSD";
}else if(eregi("bsd",$agent)){
$os="BSD";
}else if(eregi("OSF1",$agent)){
$os="OSF1";
}else if(eregi("IRIX",$agent)){
$os="IRIX";
}else if(eregi("FreeBSD",$agent)){
$os="FreeBSD";
}else if(eregi("teleport",$agent)){
$os="teleport";
}else if(eregi("flashget",$agent)){
$os="flashget";
}else if(eregi("webzip",$agent)){
$os="webzip";
}else if(eregi("offline",$agent)){
$os="offline";
}else{
$os="Unknown";
}
return $os;
}
}
/*²âÊÔ£º
$myos=new ClientGetObj;
$result=$myos->getOS();
echo "¿Í»§¶Ë²Ù×÷ϵͳΪ£º".$result;
*/
?>


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<?php
//$str = "abcdef¡ôÖлªÈËÃñ¹²ºÍ¹ú";
//$str = "1234567890";
$str = "ÖлªÈËÃñ¹²ºÍ¹úabcÖлªÈËÃñ¹²ºÍ¹úÖлªÈËÃñ¹²ºÍ¹ú";
$str = cut_str($str, 18);
echo $str;
function cut_str($str, $len){
 if(strlen($str) <= $len) return $str;
 $n = 0;
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echo date('Y-m-d H:i:s', strtotime('-1 day'));
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$yesterday = time() - (24 * 60 * 60);
echo 'today:'.date('Y-m-d H:i:s')."\n";
echo 'yesterday:'. date('Y-m-d H:i:s', $yesterday)."\n";
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<mce:script language=javascript><!--
var a=0;
// --></mce:script>
<?php
function func1()
{
$t="a=a+1;";
return $t."alert(a)";
}
?>
<?php
echo "<input type=button value='Sure' onclick=\"".func1()."\">";
?> ......
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