Package for MySQL operation Class (PHP)

<?PHPclassmysql{/** * Error function * * @param string $error*/function Err ($error) {die ("Sorry, your operation is wrong, the cause of the error is:". $error);//Die has two functions, output and termination are equivalent to echo and exit combinations    }    /** * Connect to Database * * @param string $dbhost hostname * @param string $dbuser username * @param string $dbpsw password * @param string $dbname database name * @param string $dbcharset Character Set/encoding * @return BOOL Connection succeeded or unsuccessful **/function Connect ($config) {extract ($config); if(! ($con = mysql_connect ($dbhost, $dbuser, $DBPSW))) {//mysql_connect Connecting database functions$ This-Err (Mysql_error ()); }        if(!mysql_select_db ($dbname, $con)) {//mysql_select_db functions for selecting libraries$ This-Err (Mysql_error ()); } mysql_query ("Set Names". $dbcharset);//set encoding format using mysql_query: mysql_query ("Set names UTF8")    }    /** * Execute SQL statement * * @param string $sql * @return bool Returns execution success, resource, or execution failure*/function Query ($sql) {if(! ($query = mysql_query ($sql))) {//Execute SQL statements using the Mysql_query function$ This->err ($sql."<br/>". Mysql_error ());//mysql_error Error}Else{            return$query; }    }    /** * list * * @param source $query SQL statement Resources executed through mysql_query * @return Array returns a list of arrays **/function FindAll ($query) { while($rs =mysql_fetch_array ($query, MYSQL_ASSOC)) {//The mysql_fetch_array function transforms the resource into an array, one at a time.$list []=$rs; }        returnIsset ($list)? $list:""; }    /** * Single * * * @param source $query SQL statement by mysql_query execution of resources *return array returns a single array of information **/function FindOne ($query) {$rs=mysql_fetch_array ($query, MYSQL_ASSOC); return$rs; }    /** * Specifies the value of the specified field of the row * * @param source $query SQL statement by mysql_query execution of the resource *return array returns the value of the specified field for the specified row **/function Findresult ($query, $row=0, $filed =0) {$rs=mysql_result ($query, $row, $filed); return$rs; }    /** * Add Function * * @param string $table table name * @param array $arr add arrays (one-dimensional array containing fields and values) **/function Insert ($table, $arr) {//$sql = "INSERT into table name (multiple fields) values (multiple values)"; //mysql_query ($sql);        foreach($arr as$key = $value) {//foreach Loop array$value = mysql_real_escape_string ($value);//To escape special characters in a string used in an SQL statement$KEYARR [] ="`". $key."`";//Save the key names in the $arr array to the $keyarr array$VALUEARR [] ="'". $value."'";//Save the key values in the $arr array to $valuearr, because the value is more of a string, and the SQL statement inside the insert if the value is a string words to add single quotation marks, so this place to add single quotation marks} $keys= Implode (",", $KEYARR);//The implode function is to put the array group into a string implode (delimiter, array)$values = Implode (",", $VALUEARR); $sql="Insert into". $table."(". $keys.") VALUES (". $values.")";//SQL INSERT statement format: INSERT into table (multiple fields) values (multiple values)$ This->query ($sql);//invoke the query (execute) method of the class itself to execute this SQL statement note: $this refer to itself        returnMYSQL_INSERT_ID ();//returns the ID generated by the INSERT operation in the previous step    }    /** * Modify function * * @param string $table table name * @param array $arr Modify Array (one-dimensional array containing fields and values) * @param string $where condition * */function Update ($table, $arr, $where){        //Update table name set field = field value where ...        foreach($arr as$key =$value) {$value=mysql_real_escape_string ($value); $KEYANDVALUEARR []="`". $key."' = '". $value."'"; } $keyAndvalues= Implode (",", $KEYANDVALUEARR); $sql="Update". $table."Set". $keyAndvalues."where".$where;//Modify Action Format Update table name set field = value Where Condition$ This-query ($sql); }    /** * Delete function * * @param string $table table name * @param string $where condition **/function del ($table, $where) {$sql="Delete from". $table."where".$where;//Delete SQL statement format: Delete from table name where condition$ This-query ($sql); }}?>

Package for MySQL operation Class (PHP)