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PHP code:

if(@$db_conn=mysql_connect($this->servername,$this->server_username,$this->server_userpwd)){
if(!mysql_select_db($this->database,$db_conn)){
echo "Êý¾Ý¿âÁ¬½Ó³ö´í";
exit;
}else{
echo "·þÎñÆ÷ÕýÔÚά»¤,ÇëÉÔºóÖØÊÔ";
exit;
};

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if($db_conn=@mysql_connect($this->servername,$this->server_username,$this->server_userpwd))

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if($db_conn=@mysql_connect($this->servername,$this->server_username,$this->server_userpwd))

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PHP code:
$db_conn=mysql_connect($this->servername,$this->server_username,$this->server_userpwd) or die('ÎÞ·¨Á¬½ÓÊý¾Ý¿â');

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ÒýÓà 3 Â¥ jakey9826 µÄ»Ø¸´:
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if($db_conn=@mysql_connect($this->servername,$this-