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$str=preg_replace("/<(\/?meta.*?)>/si","",$str); //¹ýÂËmeta±êÇ©   
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$str=preg_replace("/<(\/?link.*?)>/si","",$str); //¹ýÂËlink±êÇ©   
$str=preg_replace("/<(\/?form.*?)>/si","",$str); //¹ýÂËform±êÇ©   
$str=preg_replace("/cookie/si","COOKIE",$str); //¹ýÂËCOOKIE±êÇ©   
  
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}
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$con = mysql_connect("localhost", "hello", "321");
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$pwd = mysql_real_escape_string($pwd);
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mysql_close($con);
?>
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