封装的Sqlite3简易操作类

封装的Sqlite3简易操作类  

封装的Sqlite3简易操作类，基于Sqlite3扩展写的，用法和前一个Mysql一样。
但是要注意的是，数据库不存在时会自动创建一个，但是自动创建的数据库类型是Sqlite2数据库，这个要注意下。

url=$url;
        $this->open($url);
    }
    function check_input($value){
        if (get_magic_quotes_gpc()) {
            $value = sqlite_escape_string($value);
        }
        return $value;
    }
    function create($table,$name,$type=null){
        $sql = 'CREATE TABLE '.$table.'(';
        if($type==null){
            $arrname = array_keys($name);
            $arrtype = array_values($name);
        }else{
            $arrname = explode("|", $name);
            $arrtype = explode("|", $type);
        }
        for($i=0;$iquery($sql);
        if($re){
            return true;
        }else{
            return fasle;
        }
    }
    function drop($table){
        $sql = 'DROP TABLE '.$table.';';
        $re = $this->query($sql);
        if($re){
            return true;
        }else{
            return false;
        }
    }
    function insert($table,$name,$value=null){
        $sql = "INSERT INTO ".$table.'(';
        if($value == null){
        $arrname = array_keys($name);
        $arrvalue = array_values($name);
        }else{
        $arrname = explode('|', $name);
        $arrvalue = explode('|', $value);
        }
        for($i=0;$iquery($sql);
        if($re){
            return true;
        }else{
            return false;
        }
    }
    function delete($table,$Conditionsname,$Conditionsvalue=null){
        if($Conditionsvalue!=null){
            $sql = "DELETE FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
        }else{
            $sql = "DELETE FROM ".$table." WHERE ";
            $arrname = array_keys($Conditionsname);
            $arrvalue = array_values($Conditionsname);
            for($i=0;$iquery($sql);
        if($re){
            return true;
        }else{
            return false;
        }
    }
    function select($table,$name,$Conditionsname,$Conditionsvalue=null){
        if($Conditionsvalue!=null){
            $sql = "SELECT ".$name." FROM ".$table." WHERE ".$Conditionsname."='".$Conditionsvalue."';";
        }else{
            $sql = "SELECT ".$name." FROM ".$table." WHERE ";
            $arrname = array_keys($Conditionsname);
            $arrvalue = array_values($Conditionsname);
            for($i=0;$iquery($sql);
        $row = $ret->fetchArray(SQLITE3_ASSOC);
        return $row[$name];
    }
    function update($table,$name,$value,$Conditionsname,$Conditionsvalue=null){
        if($Conditionsvalue!=null){
            $sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ".
            $Conditionsname."='".$Conditionsvalue."';";
        }else{
            $sql = "UPDATE ".$table." SET ".$name."= '".$value."' WHERE ";
            $arrname = array_keys($Conditionsname);
            $arrvalue = array_values($Conditionsname);
            for($i=0;$iquery($sql);
        if($re){
            return true;
        }else{
            return false; 
        }
    }
    function group($table,$name){
        $sql = "SELECT ".$name." FROM ".$table.";";
        $return = array();
        $ret = $this->query($sql);
        while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
            array_push($return, $row[$name]);
        }
        return $return;
    }
    function fecthall($sql){
        $return = array();
        $ret = $this->query($sql);
        while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
            array_push($return, $row);
        }
        return $return;
    }
}

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