Application of thinkphp5.0 Model

            $where=Array();//            $where [' show_id '] = 1;//var_dump (Db::connect ());//view database configuration//$res = Db::query (' Selec T * from fanke_show where show_id =? ', [1]);//query with SQL statement//$res = Db::name (' Show ', [],false], where ($where ), select ();//The prefix is already entered in the database, and the third parameter is false, then it is not instantiated every time the call is made//$res = Db::execute (' INSERT INTO fanke_show se T show_id=?,show_image_scr=?,show_title=?,show_content=?,show_time=? ',///' 2 ',//' http://www.qq.com ',//' Yes! Is you ',//' You are very handsome! ",//22//]);//Use SQL statement to insert data//$res = db::table (' fanke_show '), wher  E ($where), select ();//select returns all records returned worth the result is a two-dimensional array//$res = db::table (' fanke_show '), where ($where) --Find ();//find returns a record that returns a one-dimensional array if the result does not exist, returns null//$res = db::table (' fanke_show '), where ($whe RE), value (' Show_title ');//value returns theA record is returned null//$res = db::table (' fanke_show '), where a field value does not exist, and where ($where), column (' Show_titl E ', ' show_title ');//column returns the value of the one-dimensional array, which is the value of the column we want to get, and returns null//----------------------------------------                Add data---------------------------------------------------------//$db = Db::name (' show ');//This is the way I didn't think of it before. Insert Insert data put back the number of rows inserted//insertgetid insert data returns the number of rows inserted and the increment ID//insertall inserts more than one data at a time, returns Number of rows successfully inserted//$where = null;//$where [' show_image_scr '] = ' you ';//$where [ ' show_title '] = ' very ';//$where [' show_content '] = ' handsome ';//$where [' show_time '] = 333;/// /$res = insert ($where) $db,//Insert data into the number of rows inserted//$res = $db-Insertgetid ($where);//                        Insert data returns the number of rows inserted and the increment id//$data = [];//for ($i = 0; $i <9; $i + +) {//            $data [$i] = $where;//         }//$res = $db-Insertall ($data); Insert more than one data at a time, returning the number of rows successfully inserted//--------------------------------            Database update----------------------------------------------------------//$db = Db::name (' show '); Update updates one data return is the number of rows//setfield only one field is updated//setinc The default value is 1, and the number of rows affected is returned//SETDEC self-reduction defaults is 1, returns the number of rows affected//update//$res = $db->where ([//' show_id ' + 1//])                -Update ([//' show_image_scr ' = ' 123 ',//' show_title ' = ' 123 ',//            ' show_content ' = ' 123 ',//' show_time ' = ' 123 '//];                setfield//$res = $db, where ([//' show_id ' = 5//]), SetField (//              ' Show_title ', ' Who am I? '); setinc//$res = $db->where ([//' show_id ' = 8//])->setinc (' Show_time ', 5)            ; //setdec//$res = $db->where ([//' show_id ' = 8//])->setdec (' Show_time ', 5);  /--------------------------------Data deletion----------------------------------------------------------//delete Delete a piece of data             Returns the number of rows affected if your condition is the primary key, you can pass the data directly in the Delete () method//$res = $db, where ([//' show_id ' = + 10// ])->delete ()//$res = $db->delete (one),//$res = $db, where ([' 1=1 ']), delet E ();//delete all data//--------------------------------conditional constructor---------------------------------------------------------//            BUILDSQL return SQL OUTPUT statement finally see conditional constructs video//eq =//neq <>//gt >//get >= Between Betweew * and * between//notbetween Notbetween *and* not between this//in in (*,*)/                /notin not IN (*,*)//$res = $db, where ([//' show_id ' = = [' Get ', [1,10]],//and// ' Show_title ' =&Gt            ' Very '//]), BuildSQL ();//--------------------------------chain Operation---------------------------------------------                Look back at the video.//field//order//limit//page//$res = $db// --Where (' show_time ', ' eq ', ' 333 ')//----(' show_title ')//-----* (4,5            //-select ();//----------------------------------Model----------------------------------------------              Get the model//preferably use the first two methods, so that the readability is higher//$res = S::get (3);//The first//$show = The second type of new s;//// $res = $show:: Get (1),//$show = Loader::model (' show '),///The third method above two to use their model, this does not need, as long as using Think\loa Der, other common, applicable to multiple models//$res = $show:: Get (1);//$show = Model ("show"); This doesn't use anything.//$res = $show:: Get (6);//-------------------------------model query data---------------------------------         -----------------//Query a single data//     $res = S::get (2);//Var_dump ($res, Show_title)//Query single data//$res = S::get (function ($query) {//$query where (' show_id ', ' eq ', ' 5 ')//, field (' Show _id '//});//Query single data//$res = S::where (' show_id ', 2)//->fie LD (' show_id ')//->find ()//Query multiple data//$where = Array ();//$where [' s               how_id '] = 2;//$res = S::all ($where);//foreach ($res as $k = + $v)//{// $v = $v ToArray ();//Var_dump ($V),//}//query multiple data//$res = S::all (fu            Nction ($query) {/////This adds conditions, without select and find//$query, where (' show_id ', ' < ', 5);//                });//foreach ($res as $k = + $v)//{//$v = $v-ToArray ();//     Var_dump ($v);//       }//Query multiple data//$res = S::where (' show_id ', ' > ', 2)//->field (' show_id ')  ->select ();//foreach ($res as $k + = $v)//{//$v = $v ToArray ()///Var_dump ($V)//}////$res = S::where ([' show_id ' =&            GT;1])->value (' Show_title '); The second parameter to get multiple fields of data is to set subscript key//$res = s::column (' show_content ', "show_title");//-----------------------Add data-------            -------------------//Method one adds a single data//$where = Array ();//$where [' show_title '] = ' Who am I ';// $where [' show_content '] = ' where am I ';//$where [' show_time '] = 123456789;//$res = s::create ($wh  Ere,true);//true will not automatically exclude fields from the database/if [' Show_title ', ' show_content '] he will only add data for these two fields//method two add a single data//$show =      New s;//$show-show_title = ' come ';//$show, show_content = ' this ';//      $show-Show_time = 123;//$res = $show, save (); Method three adds a single data//$show = new s;////allowfield () will not be automatically excluded from the database field/if it is [' show_title ', ' show_content '] he will only add this            Two fields of data//$res = $show, Allowfield (True), Save ($where); Add multiple data to return model object two-dimensional array//$show = new s;//$res = $show, SaveAll ([//[' Show_title                 ' = ' i haha '],//[' show_title ' = ' Pepsi ']//]);//foreach ($res as $k = + $v) {// Var_dump ($v->toarray ());//}//------------------------Update Data--------------------------------------                ----//Just update some simple data this way, because the return value of the update two times is the same, it is not possible to determine whether the update//As long as there is a primary key, there is no need to write the condition//$res = S::update ([// ' show_id ' = ' + ',//' show_title ' = ' 6666 ',//' show_content ' and ' 7777 7 ',//' show_time ' = ' 8888 '/]);//$res = S::update ([' Show_title ' = ' 6666 ',//' show_content ' = ' 77777 ',//' show_time ' = > ' 8888 '//],[' show_id ' =>5]);//$res = S::update ([//' show_title ' = ' 6666 ', ' Show_content ' = ' 77777 ',//' show_time ' = ' 8888 '//],function ($query) {            $query, where (' show_id ', ' < ', 5);/});                    Update two updates will return the number of rows affected, otherwise return 0//$res = S::where (' show_id ', ' eq ', 5)//-Update ([//            ' Show_title ' = ' I am the method two '//]);            Update three updates will return the number of rows affected, otherwise return 0//$model = s::get (1);//Get Data Model//$model, Show_title = ' 123 ';//change value// $res = $model Save ();//auto update//update four The second parameter is used for selection//$show = new s;//$res = $   Show, Save ([//"show_title" = ' Your sister's '//],[//' show_id ' = 1//             ]//                ); Update five The second parameter is used for selection//$show = new s;//$res = $show, save ([//"Show_title" = "You                Sister's '//],function ($query) {//$query, where (' show_id ', ' < ', 3);//}// );//----------------------------Delete data----------------------------------------//Method One//$res = s::d            Estroy (1);//Method two//$res = s::d estroy ([' show_id ' = 2]);            Method three-batch deletion//$res = s::d Estroy (function ($query) {//$query, where ("show_id", ' > ', 5);//            });//Method four//$model = S::get (5);//$res = $model, delete (); Method Five            $res= S::where (' show_id ', 5)Delete ();//$res = $res-ToArray ();                Var_dump($res);

Application of thinkphp5.0 Model