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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<?php
$a='abcdãÉLOVE¾ü¶ù';//²âÊÔµÄ×Ö·û´®£¬°üº¬ÖÐÎÄÎ÷ÎÄ
//ÏÂÃæµÄ²âÊÔÊä³öΪÉÏ£¬ÒòΪÔÚ±àÂëΪutf-8ʱ£¬Ò»¸öÖÐÎÄ×Ö·ûÕ¼3¸ö³¤¶È
//echo strlen('ãÉ'); 
$b='';
$i=0;
while($i<strlen($a))
{
    if(ord(substr($a,$i,1))>0xa0)//ordº¯ÊýÅжϸÃ×Ö·û´®ÊÇ·ñÊÇÖÐÎÄ
    {
       $b=substr($a,$i,3).$b;//Õâ¾äºÜÖØÒª£¬µ¹Ðò£¡
       $i+=3;
    }
    else
    {
      $b=substr($a,$i,1).$b;
      $i++;
    }
}
echo $b;
?>
</body>
</html>
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    <?php
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        *   ÔËÐл·¾³£º PHP5.0.18 ϵ÷ÊÔͨ¹ý
        *   ÐèÒª gd2 ͼÐοâÖ§³Ö£¨PHP.INIÖÐ php_gd2.dll¿ªÆ ......

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·½·¨1£ºerror_reporting (E_ALL ^ E_WARNING);
           session_start();
·½·¨2£ºerror_reporting (E_ALL & ~E_NOTICE);
if (!isset($_SESSION)) {
    session_start();
};
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grant all privileges on rogue.* to admin@localhost identified by 'admin' with grant option
grant all privileges on rogue.* to admin@'%' identified by 'admin' with grant option
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$pagesize=10; //ÉèÖÃÿһҳÏÔʾµÄ¼Ç¼Êý
$c("localhost","root",""); //Á¬½ÓÊý¾Ý¿â
$rs=mysql_query("select count(*) from tb_product",$conn); //È¡µÃ¼Ç¼×ÜÊý$rs
$myrow = mysql_fetch_array($rs);
$numrows=$myrow[0];
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