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                **文件:db.class.php** 在調用類的方法時,系統會自動載入db.class.php 文件,并用 self::$db = new mysql(); 進行初始化數據庫連接。 #### * 常用方法: 1、執行一個非查詢類型的SQL語句,如 insert 、update 、delete等 ~~~ $rs = db::query($sql); ~~~ 返回值為是否執行成功。 2、返回單個記錄 ~~~ $rs = db::find($sql); ~~~ 3、返回多條記錄 ~~~ $rs = db::select($sql); ~~~ 4、獲取最近插入的一條記錄的ID ~~~ $rs = db::insert_id($sql); ~~~ 5、獲取指定數據表中符合條件的某字段的值 ~~~ $rs = db::getfield($sql); ~~~ 6、獲取在查詢中受影響的記錄數 ~~~ $rs = db::affected_rows($sql); ~~~
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