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<?PHP
/*
 * MySQL class (MySQLi replacement)
 * @author SilverWolf
 * @version 1.0
 * @package MySQL
 *
 */

class MySQL{
    /**
     * Contains the error message if there was a connection problem
     * @access public
     * @var string
     */
    public $connect_error;
    
    /**
     * Contains the error code if there was a connection problem
     * @access public
     * @var int
     */
    public $connect_errno;
    
    /**
     * Contains the error code if there was an error
     * @access public
     * @var string
     */
    public $error;
    
    /**
     * Contains the error code if there was an error
     * @access public
     * @var int
     */
    public $errno=0;
    
    /**
     * Contains detailed info about the last query
     * @access public
     * @var string
     */
    public $info;
    
    /**
     * Contains the number of affected rows in the last query (same as mysql_num_rows in a SELECT statement)
     * @access public
     * @var int
     */
    public $affected_rows;
    
    /**
     * Contains the number of fields in the last query
     * @access public
     * @var int
     */
    public $field_count=0;
    
    /**
     * Contains the mysql connection to the database
     * @access private
     * @var resource of type mysql link
     */
    private $connection;
    
    /**
     * Contains all the queries of the last multiquery
     * @access private
     * @var array
     */
    private $multi_query_queries=array();
    
    /**
     * Contains the offset of the multiquery array, used when fetching next result
     * @access private
     * @var int
     */
    private $mutli_query_offset=0;
    
    /**
     * Contains the result of the last query executed
     * @access private
     * @var MySQL_result
     */
    private $multi_query_result;
    
    /*
     * The constructor, sets the mysql resource link if data is given
     * @param $host string
     * @param $user string
     * @param $pass string
     * @param $db string
     */
    public function __construct($host=null,$user=null,$pass=null,$db=null){
        if(empty($host)){
            return;
        }else{
            $this->connect($host,$user,$pass,$db);
            return;
        }
    }
    
    /*
     * The connector, this actually makes the connection with the database
     * @param $host string
     * @param $user string
     * @param $pass string
     * @param $db string
     */
    public function connect($host,$user,$pass,$db){
        $this->connection=mysql_connect($host,$user,$pass);
        if(!$this->connection){
            $this->set_error("connection");
            $this->connect_error=mysql_error($this->connection);
            $this->connect_errno=mysql_errno($this->connection);
            return;
        }else{
            $dbselect=mysql_select_db($db,$this->connection);
            if(!$dbselect){
                $this->connect_error=mysql_error($this->connection);
                $this->connect_errno=mysql_errno($this->connection);
                return;
            }else{
                return;
            }
        }
    }
    
    /*
     * Set an error
     * @param $type string
     */
    public function set_error($type){
        if($type=="connection"){
            $this->error=mysql_error($this->connection);
            $this->errno=mysql_errno($this->connection);
            return;
        }else{
            //Space for other types of errors (STMT)
            return;
        }
    }
    
    /*
     * Execute given query
     * @param $query string
     * @return MySQL_result
     * @return boolean
     */
    public function query($query){
        $this->last_query_result=mysql_query($query,$this->connection);
        if($this->last_query_result!==false){
            $this->affected_rows=max(mysql_num_rows($this->last_query_result),mysql_affected_rows($this->last_query_result));
            $this->info=mysql_info($this->connection);
            $insert_id=mysql_insert_id($this->connection);
            $this->field_count=@count(mysql_fetch_row($this->last_query_result));
            mysql_data_seek($this->last_query_result,0);
            return new MySQL_result($this->last_query_result,$insert_id);
        }else{
            $this->set_error("connection");
            return false;
        }
    }
    
    /*
     * Execute given multiquery
     * @param $queries string
     * @return boolean
     */
    public function multi_query($queries){
        $this->multi_query_queries=explode(";",$queries);
        $this->last_query_result=$this->query($this->multi_query_queries[$this->multi_query_offset]);
        $this->multi_query_offset++;
        if($this->errno!==0){
            return false;
        }else{
            return true;
        }
    }
    
    /*
     * Store the current result of a multiquery
     * @return MySQL_result
     */
    public function store_result(){
        return $this->last_query_result;
    }
    
    /*
     * Check if there are more results available in a multiquery
     * @return boolean
     */
    public function more_results(){
        return ($this->multi_query_offset<count($this->multi_query_queries));
    }
    
    /*
     * Prepare the next result of a multiquery
     * @return boolean
     */
    public function next_result(){
        $this->last_query_result=$this->query($this->multi_query_queries[$this->multi_query_offset]);
        $this->multi_query_offset++;
        if(($this->errno!==0)&&(!$this->last_query_result)){
            return false;
        }else{
            return true;
        }
    }
    
    /*
     * Prepare the next result of a multiquery
     * @param $data mixed
     * @return mixed
     */
    public function real_escape($data){
        if(is_array($data)){
            foreach($data as &$value){
                $value=mysql_real_escape_string($data,$this->connection);
            }
            return $data;
        }else{
            return mysql_real_escape_string($data,$this->connection);
        }
    }
    
    /*
     * Prepare a query
     * @param $query string
     * @return MySQL_STMT
     */
    public function prepare($query){
        return new MySQL_STMT($query,$this);
    }
    
    /*
     * Close the mysql-connection
     * @return boolean
     */
    public function close(){
        return mysql_close($this->connection);
    }
    
    /*
     * Checks whether the connection to the server is working
     * @return boolean
     */
    public function ping(){
        return mysql_ping($this->connection);
    }
    
    /*
     * Sets the current active database
     * @return boolean
     */
    public function select_db($dbname){
        return mysql_select_db($dbname,$this->connection);
    }
}

/*
 * MySQL_result class (MySQLi_result replacement)
 * @author SilverWolf
 * @version 1.0
 * @package MySQL_result
 *
 */
class MySQL_result{
    /**
     * Contains the result given by mysql_query()
     * @access protected
     * @var resource of type mysql result
     */
    protected $result;
    
    /**
     * If the result is freed, it cannot be fetched anymore
     * @access protected
     * @var resource of type mysql result
     */
    protected $is_freed=false;
    
    /**
     * Contains the number of rows if query was a SELECT query
     * @access public
     * @var int
     */
    public $num_rows;
    
    /**
     * Contains the number of fields
     * @access public
     * @var int
     */
    public $field_count;
    
    /*
     * The constructor, puts the result, number of rows and id in the appropriate vars
     * @param $host string
     * @param $user string
     * @param $pass string
     * @param $db string
     */
    public function __construct($result,$id=null){
        $this->result=$result;
        $this->num_rows=mysql_num_rows($this->result);
        $this->field_count=mysql_num_fields($this->result);
        return;
    }
    
    /*
     * Returns an associative array containing the current result row
     * @return array
     */
    public function fetch_assoc(){
        if(!$this->is_freed){
            return mysql_fetch_array($this->result,MYSQLI_ASSOC);
        }else{
            return false;
        }
    }
    
    /*
     * Returns both an asociative and a numeric array containing the current result row
     * @return array
     */
    public function fetch_array($resulttype=MYSQLI_BOTH){
        if(!$this->is_freed){
            return mysql_fetch_array($this->result,$resulttype);
        }else{
            return false;
        }
    }
    
    /*
     * Returns a numeric array containing the current result row
     * @return array
     */
    public function fetch_row(){
        if(!$this->is_freed){
            return mysql_fetch_array($this->result,MYSQLI_NUM);
        }else{
            return false;
        }
    }
    
    /*
     * Returns an object containing the current result row
     * @return array
     */
    public function fetch_object(){
        if(!$this->is_freed){
            return mysql_fetch_object($this->result);
        }else{
            return false;
        }
    }
    
    /*
     * Seek an arbitrary result pointer specified by the offset in the result set
     * @return bool
     */
    public function data_seek($offset){
        return mysql_data_seek($this->result,$offset);
    }
    
    /*
     * Frees the memory associated with a result, clears the object
     * @return bool
     */
    public function free(){
        mysql_free_result($this->result);
        $this->result=null;
        $this->is_freed=true;
        $this->num_rows=null;
        $this->field_count=null;
        return;
    }
    
    /*
     * Sets the field cursor to the given offset
     * @return bool
     */
    public function field_seek($offset){
        return mysql_field_seek($this->result,$offset);
    }
    
    /*
     * Returns an array of objects which contains field definition information
     *
     * PLEASE PAY ATTENTION! THIS FUNCTION DOES NOT RETURN THE SAME VALUES AS THE MYSQLI CLASS,
     * AND SHOULD BE IMPLEMENTED OTHERWISE! WHEN USING, ALLWAYS CONSULT THE PHP MANUAL ABOUT
     * THE MYSQL AND MYSQLI FUNCTIONS ( mysql_fetch_field() and mysqli_fetch_field() )!
     *
     * @return array
     */
    public function fetch_fields(){
        $data=array();
        $fields=mysql_num_fields($this->result);
        for($i=0;$i<$fields;$i++){
            $data[]=mysql_fetch_field($this->result,$i);
        }
        return $data;
    }
    
    /*
     * Returns the definition of one column of a result set as an object
     *
     * PLEASE PAY ATTENTION! THIS FUNCTION DOES NOT RETURN THE SAME VALUES AS THE MYSQLI CLASS,
     * AND SHOULD BE IMPLEMENTED OTHERWISE! WHEN USING, ALLWAYS CONSULT THE PHP MANUAL ABOUT
     * THE MYSQL AND MYSQLI FUNCTIONS ( mysql_fetch_field() and mysqli_fetch_field() )!
     *
     * @return object
     */
    public function fetch_field(){
        return mysql_fetch_field($this->result);
    }
    
    /*
     * Fetch meta-data for a single field
     *
     * PLEASE PAY ATTENTION! THIS FUNCTION DOES NOT RETURN THE SAME VALUES AS THE MYSQLI CLASS,
     * AND SHOULD BE IMPLEMENTED OTHERWISE! WHEN USING, ALLWAYS CONSULT THE PHP MANUAL ABOUT
     * THE MYSQL AND MYSQLI FUNCTIONS ( mysql_fetch_field() and mysqli_fetch_field() )!
     *
     * @return object
     */
    public function fetch_field_direct($offset){
        if(!$this->field_seek($offset))return false;
        return $this->fetch_field();
    }
}

/* Define the constants used in the classes
 */
if(!defined("MYSQLI_ASSOC")){
    define("MYSQLI_ASSOC",1);
    define("MYSQLI_NUM",2);
    define("MYSQLI_BOTH",3);
}

/*
 * MySQL_STMT class (MySQLi_STMT replacement)
 * @author SilverWolf
 * @version 1.0
 * @package MySQL_STMT
 * @info:
   This package has not been finished yet. Please don't use prepared statements yet!
 */
class MySQL_STMT{
    public $affected_rows;
    public $num_rows;
    public $errno;
    public $error;
    public $field_count;
    public $param_count=0;
    
    protected $query;
    protected $prequery;
    protected $original_query;
    protected $link;
    protected $result;
    protected $bound_vars=array();
    public function __construct($query,&$link){
        $this->link=&$link;
        $this->prepare($query);
    }
    public function prepare($query){
        $this->prequery=explode("?",$query);
        $this->original_query=$this->prequery;
        $this->query=array_shift($this->prequery);
        return;
    }
    public function bind_param(){
        $args=func_get_args();
        $types=strtolower(array_shift($args));
        if(count($args)<1){
            $this->link->set_error("other","$mysql_stmt->bind_param() did not get enough arguments!");
        }elseif(count($args)==1){
            if(is_array($args[0])){
                foreach($args[0] as $arg){
                    $this->add_param($arg,$types);
                }
            }else{
                $this->add_param($args,$types);
            }
        }else{
            $i=0;
            foreach($args as $arg){
                if(is_array($args)){
                    foreach($args as $arg){
                        $this->add_param($arg,$types[$i]);
                        $i++;
                    }
                }else{
                    $this->add_param($args,$types[$i]);
                    $i++;
                }
            }
        }
        return;
    }
    
    protected function add_param($value,$type){
        if($type=="s"){
            $this->query.="'".$this->link->real_escape($value)."'".array_shift($this->prequery);
        }elseif($type=="i"){
            $this->query.=intval($value).array_shift($this->prequery);
        }elseif($type=="d"){
            $this->query.=doubleval($value).array_shift($this->prequery);
        }elseif($type=="b"){
            $this->query.="'".$this->link->real_escape($value)."'".array_shift($this->prequery);
        }else{
            $this->query.="'".$this->link->real_escape($value)."'".array_shift($this->prequery);
        }
        return;
    }
    
    public function bind_result(&$a,&$b=null,&$c=null,&$d=null,&$e=null,&$f=null,&$g=null,&$h=null,&$i=null,&$j=null,&$k=null,&$l=null,&$m=null,&$n=null,&$o=null,&$p=null,&$q=null,&$r=null,&$s=null,&$t=null,&$u=null,&$v=null,&$w=null,&$x=null,&$y=null,&$z=null){
        $vars=range('a','z');
        foreach($vars as $var){
            $this->bound_vars[]=&${$var};
        }
    }
    
    public function fetch() {
        $row = $this->result->fetch_row();
        if($row==false){
            return false;
        }else{
            foreach($row as $index => $value){
                $this->bound_vars[$index] = $value;
                $this->param_count++;
            }
            return true;
        }
    }
    
    public function execute(){
        $this->result=$this->link->query($this->query);
        //asdfasdfasdf
            $this->num_rows=$this->result->num_rows;
            $this->affected_rows=$this->link->affected_rows;
            $this->insert_id=$this->link->insert_id;
            $this->field_count=$this->result->field_count;
        return;
    }
    
    public function data_seek($offset){
        return $this->result->data_seek($offset);
    }
    
    public function close(){
        unset($this);
        return;
    }
    
    public function store_result(){
        return $this->result;
    }
}
?>

 
 

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