mysql_wrapper.php

<?php
/* #!modules/mysql.php
 * Bike-This.com - Modules
 * By Sam Jesso - [email protected]
 * File:        mysql.php
 * Type:        PHP
 * Description: A MySQL (PHP 4 mysql_*) wrapper that makes queries visually easier to follow, execute, and debug.
 */

class MySQL
{
    private $query, $queryData;
    public $numQueries;
    public function __construct($user, $pass, $db, $host = "localhost")
    {
        $conn = mysql_connect($host, $user, $pass) or die(mysql_error());
        mysql_select_db($db, $conn) or die(mysql_error());
        return $this;
    }
    public function __destruct()
    {
        mysql_close();
    }
    public function __toString()
    {
        return (string) $this->numQueries;
    }
    public function select($from, $fields = array())
    {
        if(count($fields) > 0)
        {
            $fieldstr = "";
            foreach($fields as $key => $value)
                $fieldstr.= (is_numeric($key)) ? ", {$value}" : ", {$key} AS {$value}";
                
            $fieldstr = substr($fieldstr, 2);
        }
        else
        {
            $fieldstr = "*";
        }
        $this->query.= "SELECT {$fieldstr} FROM {$from} ";
        return $this;
    }
    public function query($query)
    {
        $this->queryData = mysql_query($query) or die(mysql_error());
        $this->numQueries++;
        return $this;
    }
    public function rawquery($query)
    {
        $this->numQueries++;
        return mysql_query($query);
    }
    public function update($table)
    {
        $this->query.= "UPDATE {$table} ";
        return $this;
    }
    public function set($settings = array())
    {
        $this->query.= "SET ";
        $set = "";
        foreach($settings as $key => $value)
            $set.= ", {$key} = '{$value}'";
            
        $set = substr($set, 2);
        $this->query.= $set." ";
        return $this;
    }
    public function delete($from)
    {
        $this->query.= "DELETE FROM {$from} ";
        return $this;
    }
    public function insert($into)
    {
        $this->query.= "INSERT INTO {$into} ";
        return $this;
    }
    public function values($array)
    {
        $keys = "";
        $values = "";
        foreach($array as $key => $value)
        {
            $keys.= ", {$key}";
            $values.= ", '{$value}'";
        }
        $keys = substr($keys, 2);
        $values = substr($values, 2);
        $this->query.= "({$keys}) VALUES ({$values}) ";
        return $this;
    }
    public function join($table, $on = array())
    {
        $this->query.= "INNER JOIN {$table} ";
        if(count($on) > 0)
        {
            $where = "";
            $this->query.= "ON ";
            foreach($on as $key => $value)
            {
                $where.= ", {$key} = {$value}";
            }
            $where = substr($where, 2)." ";
            $this->query.= $where;
        }
        return $this;
    }
    public function where($args = array(), $type = "AND")
    {
        $i = 0;
        $where = "";
        foreach($args as $key => $value)
        {
            $where.= ($i == 0) ? "WHERE {$key} = '{$value}' " : "{$type} {$key} = '{$value}' ";
            $i++;
        }
        $this->query.= $where;
        return $this;
    }
    public function order($by, $type = "DESC")
    {
        if(strtoupper($by) == "RAND")
        {
            $by = "RAND()";
            $type = "";
        }
        else
        {
            $type = (strtoupper($type) == "DESC") ? " DESC" : " ASC";
        }
        $this->query.= "ORDER BY {$by}{$type} ";
        return $this;
    }
    public function limit($start, $finish = NULL)
    {
        $limit = "LIMIT {$start} ";
        if($finish)
            $limit.= substr($limit, 0, -1).",{$finish} ";
            
        $this->query.= $limit;
        return $this;
    }
    public function execute()
    {
        $this->numQueries++;
        $this->query = substr($this->query, 0, -1);
        $this->queryData = mysql_query($this->query) or die(mysql_error());
        $this->query = "";
        return $this;
    }
    public function fetch($as = "object")
    {
        return ($as == "object") ? mysql_fetch_object($this->queryData) : mysql_fetch_array($this->queryData);
    }
    public function results()
    {
        return mysql_num_rows($this->queryData);
    }
}