SOCMED/application/config/database.php

<?php
//session_start();
class Database {   
	private $db_host = db_host;  
    private $db_user = db_user;  
    private $db_pass = db_pass; 
    private $db_name = db_name; 
	
	public $sqlErr = array();	
  
	private $queryResult;
	private $idResult;
    private $connection = false;
    protected $result = array();
  
	public function __construct() {
		$this->connect;
	}
    
    public function connect(){
		if(!$this->connection){
            $mycon = @mysql_connect($this->db_host,$this->db_user,$this->db_pass);
            if($mycon){    
				$selectdb = @mysql_select_db($this->db_name,$mycon);
	            if($selectdb){    
				    $this->connection = true; 
                    return true;    
                }else{   
					array_push($this->sqlErr, "Tidak Menemukan Database");
                    return false;    
                }    
            }else{    
				echo "Tidak bisa tersambung ke mysql";
                return false;    
            }    
        }else{    
            return true;    
        }    
    }
	
    public function disconnect(){
		if($this->connection){    
			if(@mysql_close()){    
				$this->connection = false;    
				return true;    
			}else{    
				return false;    
			}    
		}    
	}
    
    public function select($table, $rows = '*', $where = null, $limit = null, $order = null){    
        $q = 'SELECT '.$rows.' FROM '.$table;  
        if($where != null) $q .= ' WHERE '.$where;  
        if($order != null) $q .= ' ORDER BY '.$order;
		if($limit != null) $q .= ' LIMIT '.$limit;
		//echo $q.'</br>';
		//array_push($this->sqlErr, $q);
        if($this->tableExists($table)){
			$query = @mysql_query($q);
			$query2 = mysql_query($q);
			$this->queryResult = $query2;
			if($query){
		      $this->numRows = mysql_num_rows($query);  //retrieves the number of rows from the query  
              for($i = 0; $i < $this->numRows; $i++)    
              {    
                $r = mysql_fetch_array($query); //mysql_fetch_array returns an array that corresponds to the fetched row  
                $key = array_keys($r);  //array_keys() returns the keys, numeric and string, from the input array.  
                for($x = 0; $x < count($key); $x++)  //count() counts all elements in an array  
                {    
                    // Sanitizes keys so only alphavalues are allowed    
                    if(!is_int($key[$x]))    
                    {    
                        if(mysql_num_rows($query) > 1)    
                            $this->result[$i][$key[$x]] = $r[$key[$x]];    
                        else if(mysql_num_rows($query) < 1)    
                            $this->result = null;    
                        else    
                            $this->result[$key[$x]] = $r[$key[$x]];    
                    }    
                }    
			  }    
              return true;    
			}else{
			  array_push($this->sqlErr, "Ada kesalahan pada query");
			  return false;    
			}    
        }else {
			echo "Table tidak ditemukan";
			return false;
		}
    }    
    
    public function insert($table,$values,$rows = null) {  
        if($this->tableExists($table)){    
            $insert = 'INSERT INTO '.$table; 
            if($rows != null)$insert .= ' ('.$rows.')';    
            for($i = 0; $i < count($values); $i++){    
                if(is_string($values[$i]))$values[$i] = '"'.$values[$i].'"';  
            }    
            $values = implode(',',$values);    
            $insert .= ' VALUES ('.$values.')';
			//echo $insert;
            $insert_query = @mysql_query($insert);    
            if($insert_query){
				$this->idResult = mysql_insert_id();
                return true;    
            }else{ 
                return false;    
            }    
        }    
    }    
    
    public function delete($table,$where = null){    
        if($this->tableExists($table)){    
            if($where == null){    
                $delete = 'DELETE '.$table;    
            }else{    
                $delete = 'DELETE FROM '.$table.' WHERE '.$where;  //equivalent to DELETE FROM table1 WHERE ......  
            }    
            $delete = @mysql_query($delete);
            if($delete){    
                return true;    
            }else{    
               return false;    
            }    
        }else{    
            return false;    
        }    
    }    
    
    public function update($table,$rows,$where){  
        if($this->tableExists($table)){    
            for($i = 0; $i < count($where); $i++){  
                if($i%2 != 0){  
                    if(is_string($where[$i])){  
                        if(($i+1) != null)$where[$i] = '"'.$where[$i].'" AND ';  
                        else $where[$i] = '"'.$where[$i].'"';  
                    }  
                }  
            }  
            //$where = implode('',$where);  
            $update = 'UPDATE '.$table.' SET ';  
            $keys = array_keys($rows);  
            for($i = 0; $i < count($rows); $i++){  
                if(is_string($rows[$keys[$i]])) $update .= $keys[$i].'="'.$rows[$keys[$i]].'"';    
                else $update .= $keys[$i].'='.$rows[$keys[$i]];
                // add commas  
                if($i != count($rows)-1) $update .= ',';
            }  
            $update .= ' WHERE '.$where;
			//echo $update;
            $query = @mysql_query($update);  
            if($query)  
            {  
                return true;  
            }  
            else  
            {  
                return false;  
            }  
        }  
        else  
        {  
            return false;  
        }  
    }  

    public function query($q){
        $q2 = mysql_query($q);
		return $q2;
    }
	
	public function getResult(){
        return $this->result;
    }
	
	public function getQueryResult(){
		return $this->queryResult;
    }
	
	public function getId(){
		return $this->idResult;
	}
	
	public function getSqlerr(){
		return $this->sqlErr;
	}
	
	public function tableExists($table){
		$tabl = explode(",", $table);
        $tableInDb = @mysql_query('SHOW TABLES FROM '.$this->db_name.' LIKE "'.$tabl[0].'"');    
        if($tableInDb)    
        {    
            if(mysql_num_rows($tableInDb)==1)    
            {    
                return true;    
            }    
            else    
            {    
                return false;    
            }    
        }    
    }   
}    

?>