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                # 查詢數據 >[warning] 示例中的條件查詢細節請參閱 **條件查詢(WHERE)** 章節。 <br/><br/> ## 基本查詢(多行數據查詢) >[info] select($table, $columns, $where) $table表明; $columns列名; $where查詢條件(可選) ~~~ public function getdata(){ $db = DB(); //實例化數據庫操作類 //查詢users表,所有字段,所有行 $list = $db->select('users','*'); //附加條件:user_id字段值等于50的數據 $list = $db->select('users','*',['user_id' => 50]); } ~~~ <br/><br/> ## 單行數據查詢 >[info] get($table, $columns, $where) $table表明; $columns列名; $where查詢條件(可選) ~~~ public function getdata(){ $db = DB(); //實例化數據庫操作類 //查詢users表,第1行,所有字段 $user = $db->get('users','*'); //附加條件:user_id字段值等于50的數據 $user = $db->get('users','*',['user_id' => 50]); } ~~~
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