一个普遍通用的 PHP 连接 MYSQL 数据库类 db_host = $db_host; $this->db_user = $db_user; $this->db_pwd = $db_pwd; $this->db_database = $db_database; $this->conn = $conn; $this->coding = $coding; $this->connect(); } /*数据库连接*/ public function connect() { if ($this->conn == "pconn") { //永久链接 $this->conn = mysql_pconnect($this->db_host, $this->db_user, $this->db_pwd); } else { //即使链接 $this->conn = mysql_connect($this->db_host, $this->db_user, $this->db_pwd); } if (!mysql_select_db($this->db_database, $this->conn)) { if ($this->show_error) { $this->show_error("数据库不可用：", $this->db_database); } } mysql_query("SET NAMES $this->coding"); } /*数据库执行语句，可执行查询添加修改删除等任何sql 语句*/ public function query($sql) { if ($sql == "") { $this->show_error("SQL 语句错误：", "SQL 查询语句为空"); } $this->sql = $sql; $result = mysql_query($this->sql, $this->conn); if (!$result) { //调试中使用，sql 语句出错时会自动打印出来 if ($this->show_error) { $this->show_error("错误SQL 语句：", $this->sql); } } else { $this->result = $result; } return $this->result; } /*创建添加新的数据库*/ public function create_database($dat...
