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    1.ÓÃJSµ÷ÓÃÎļþcount.php  ÔÚÄãÐèÒª¼ÓÈëͳ¼ÆµÄµÄµØ·½¼ÓÈë<script src="count.php"></script>  ʵ¼ÊÔËÓÃÖÐ×¢ÒâÐ޸ķ¾¶£¡
  
     2.php»·¾³±ØÐëÖ§³Öputenv()º¯Êý,¿ÉÒÔͳ¼Æ×òÈÕ·ÃÎÊ£¬½ñÈÕ·ÃÎÊ£¬ÔÚÏßÈËÊý,Äú·ÃÎʵĴÎÊý¡£
    3 . ÔÚcount.phpÏàͬĿ¼½¨Á¢ÒÔÏÂÎļþ  count,temp,online,н¨Îı¾Îĵµcount.txt È»ºóÈ¥µôÀ©Õ¹Ãû¾ÍÊÇÎļþcountÁË£»Èç¹ûÊÇLinuxÖ÷»úÇë°ÑÕâÈý¸öÎļþÊôÐÔÉèΪ777.
count.phpÎļþ´úÂë:
<?
$file             = "count"; // ¼ÇÊýÎļþÃû³Æ
$startno          = "1000";   // ÆðʼÊýÖµ
$tempfile         = "temp"; 
$t_now   = time();
$t_array = getdate($t_now);
$day     = $t_array['mday'];
$mon     = $t_array['mon'];
$year    = $t_array['year'];
if (file_exists("$file")) {
        $count_info=file("$file");
        $c_info = explode(",", $count_info[0]);
        $total_c=$c_info[0];
        $yesterday_c=$c_info[1];
        $today_c=$c_info[2];
        $lastday=$c_info[3];
} else {
        $total_c="$startno";
        $yesterday_c="0";
        $today_c="0";
        $lastday="0";
}
if ( !isset($HTTP_COOKIE_VARS["countcookie"]) || $HTTP_COOKIE_VARS["countcookie"] != $day) {
        $your_c=1;
        $lockfile=fopen("temp","a");
        flock($lockfile,3);
        putenv


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$array=array(array(2,324,34)); 
echo   $array[0][1]; 
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$student[0][0]="ÎÒ";
$student[0][1]="ÊÇ";
$student[1][0]="Ë­";
$student[1][1]="ά";
 echo   $student[1][0];
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PHPÁ¬½ÓMysqL

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$conn=mysql_connect ("localhost:3306", "username", "password");
mysql_select_db("DBname");
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$exec="select * from stu";
$result=mysql_query($exec);
while($rs=mysql_fetch_object($result))
{
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