PHP使用PDO方式，将Mysql的数据转换成SQLite形式的一个function_MySQL

    /**     * 通过Mysql创建SQlite     * $db 数据库     * $tbname 表名     * $is_images 需要保存的图片二进制数组 array("img1","img2","img3")形式，默认为false     * return SQL的数组形式     */         function creat_sqlite($db, $tbname, $is_images = false){                $runsql1 = $db->query("SELECT * FROM `$tbname` limit 1");        $fields_rows = $runsql1->columnCount();                $tb_fields_info = array();        $tb_string = "";            for ($i = 0; $i < $fields_rows; $i++) {              $dot = ($i > 0) ? "," : "";                        $tb_meta = $runsql1->getColumnMeta($i);                        //如果存在数据且字段存在需要取消的字段中            if($is_images && in_array($tb_meta['name'], $is_images)){                continue;            }                        $tb_string .= $dot.$tb_meta['name'];                        switch($tb_meta['native_type']){                case "VAR_STRING":                    $tb_string .= " "."varchar";                    break;                                    case "LONG":                    $tb_string .= " "."integer";                    break;                                     case "BLOB":                    $tb_string .= " "."text";                    break;            }                        if(isset($tb_meta['flags'][1]) && ($tb_meta['flags'][1] === "primary_key")){                $tb_string .= " "."PRIMARY KEY";            }                if($tb_meta['flags'][0] === "not_null") {                $tb_string .= " "."NOT NULL";            }                }                //创建数据的SQL语句        $creat_tbs['data'] = "CREATE TABLE  IF NOT EXISTS data ($tb_string);";                  //创建图片的SQL语句        if($is_images) {            $tb_images = '';            foreach($is_images as $k => $v){                $di = ($k > 0) ? " , " : " ";                $tb_images .= $di.$v." blob NOT NULL";            }            $creat_tbs['images'] = "CREATE TABLE  IF NOT EXISTS images (                id integer PRIMARY KEY  NOT NULL,                tid integer NOT NULL,$tb_images);";            }                return $creat_tbs;          }

demo生成的结果（没设置image）为（我将其转换成了json形式）：