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<?php
/*
**************************************************************************************
* Maker : 정영훈(m4700q@nate.com) *
* Create Date : 2010.1.18 *
* Update Date : 2010.1.26 *
* Create Purpose : DB Query 처리를 위한 클래스 *
* Program Version : 2.0 *
* Program Name : Soyou DB 클래스 *
* Update 내용 : 기존의 사용방식을 단순화 시킴 *
**************************************************************************************
*/
class MySQL {
var $_resource = null;
var $isdev;
public function MySQL($connect){
$this->_resource = NULL;
$this->isdev = 1;
$this->connect($connect);
}
//DB Connection
public function connect($connect) {
/*$host = isget($connect, 'host');
$user = isget($connect, 'user');
$pass = isget($connect, 'pass');
$name = isget($connect, 'name');*/
$host = $connect['host']; // 배열로 수정
$user = $connect['user'];
$pass = $connect['pass'];
$name = $connect['name'];
if ($host && $user && $pass && $name) {
$resource = @mysql_connect($host, $user, $pass) or exit('db connect error');
@mysql_select_db($name, $resource) or exit('db select error');
$this->_resource = $resource;
$this->query("set names utf8");
}
}
public function parse($param) {
$result = array('field'=>'*', 'where'=>null, 'group'=>null, 'order'=>null, 'limit'=>null);
if (!is_array($param)) return $result;
if (array_key_exists('field', $param) && $param['field']) $result['field'] = $param['field'];
if (array_key_exists('where', $param) && $param['where']) $result['where'] = 'WHERE ' . $param['where'];
if (array_key_exists('group', $param) && $param['group']) $result['group'] = 'GROUP BY ' . $param['group'];
if (array_key_exists('order', $param) && $param['order']) $result['order'] = 'ORDER BY ' . $param['order'];
if (array_key_exists('limit', $param) && $param['limit']) $result['limit'] = 'LIMIT ' . $param['limit'];
return $result;
}
public function fetch($resrc=null) {
if (!$resrc) return false;
return mysql_fetch_assoc($resrc);
//return mysql_fetch_array($resrc);
}
public function querystring($args=null) {
if (is_array($args)) {
$data = array();
foreach ($args as $k => $v) {
if (preg_match('/(now\(\))/i', $v)) {
$data[] = "`$k`={$v}";
} else if(preg_match('/([\+\-\*\/])=[0-9]+/', $v)) {
$data[] = "`$k`={$v}";
} else {
$v = str_replace(array("&", "<"), array("&", "<"), addslashes(stripslashes($v)));
$data[] = "`$k`='{$v}'";
}
}
return implode(', ', $data);
}
return $args;
}
// Update Query 처리
public function update($table, $field, $where=null){
$field = $this->querystring($field);
if ($where) $where = 'WHERE ' . $where;
$query = trim("UPDATE " . $table . " SET {$field} {$where}");
return $this->query($query);
}
// Insert Query 처리
public function insert($table, $field){
$field = $this->querystring($field);
$query = trim("INSERT INTO " . $table . " SET {$field}");
return $this->query($query);
}
// Select Query 처리
public function select($table, $param=array()){
extract($this->parse($param));
$query = trim("SELECT {$field} FROM " . $table . " {$where} {$group} {$order} {$limit}");
//prt($query);
$resrc = $this->query($query);
if (!$resrc) return array();
return $this->fetch_all($resrc);
}
public function fetch_all($stmt) {
if(!$stmt) return array();
$rowset = array();
while($row = $this->fetch($stmt)) {
$rowset[] = $row;
//echo($row[name]);
}
return $rowset;
}
public function row($table, $param=array()) {
extract($this->parse($param));
$sql = trim("SELECT {$field} FROM " . $table . " {$where} {$group} {$order} {$limit}");
return $this->fetch($this->query($sql));
}
// Delete Query 처리
public function delete($table, $where){
$where = 'WHERE ' . $where;
$query = trim("DELETE FROM " . $table . " {$where}");
return $this->query($query);
}
// 쿼리를 받아서 최종 처리
public function query($query){
//return @mysql_query($query,$this->resource);
$res = @mysql_query($query, $this->_resource) or exit('db query error' . (isdev() ? "[".mysql_errno()."] : {$query}<br><b>".mysql_error()."</b>" : ''));
if (!$res) return false;
$type = strtolower(substr($query, 0, 6));
if ($type == 'select') return (mysql_num_rows($res)) ? $res : false;
if ($type == 'update') return intval(mysql_affected_rows($this->_resource));
if ($type == 'delete') return intval(mysql_affected_rows($this->_resource));
if ($type == 'insert') {
$insert_id = mysql_insert_id($this->_resource);
return $insert_id ? $insert_id : intval(mysql_affected_rows($this->_resource));
}
return $res;
}
//하나의 값만 불러옴
public function one($table, $field, $where=null) {
if ($where) $where = 'WHERE ' . $where;
$sql = trim("SELECT {$field} FROM " . $table . " {$where}");
if ($resrc = $this->query($sql)) return mysql_result($resrc, 0);
return false;
}
//COUNT 값
public function num($table, $field, $where=null, $group=null) {
$field = 'COUNT(' . $field . ')';
if ($where) $where = 'WHERE ' . $where;
if ($group) $group = 'group by '. $group;
$sql = trim("SELECT {$field} FROM " . $table . " {$where}"." {$group}");
//echo $sql;
if ($resrc = $this->query($sql)) return mysql_result($resrc, 0);
return false;
}
//레코드삭제
public function rDel($table, $where){
$where = 'where '.$where;
$sql = trim("delete from ". $table." {$where} ");
$this->query($sql);
return false;
}
//MAX 값
public function max($table, $field, $where=null) {
if ($where) $where = 'WHERE ' . $where;
$sql = trim("SELECT MAX(`{$field}`) FROM " . $table . " {$where}");
if ($resrc = $this->query($sql)) return mysql_result($resrc, 0);
return false;
}
//MIN 값
public function min($table, $field, $where=null) {
if ($where) $where = 'WHERE ' . $where;
$sql = trim("SELECT MIN(`{$field}`) FROM " . $table . " {$where}");
if ($resrc = $this->query($sql)) return mysql_result($resrc, 0);
return false;
}
}
/* insert 사용법
include 'classes/db_class.php';
$connect = array();
$connect['host'] = 'localhost'; // 호스트명
$connect['user'] = 'root'; // 디비 유저명
$connect['pass'] = '1234'; // 디비 접속 암호
$connect['name'] = 'test2'; // 데이타베이스명
$db = new MySQL($connect);
$array = $db->insert('member', array(
'id' => 'test2',
'name' => '한글'
));
*/
/* update 사용법
include 'classes/db_class.php';
$connect = array();
$connect['host'] = 'localhost'; // 호스트명
$connect['user'] = 'root'; // 디비 유저명
$connect['pass'] = '1234'; // 디비 접속 암호
$connect['name'] = 'test2'; // 데이타베이스명
$db = new MySQL($connect);
$array = $db->update('member', array(
'id' => 'test200002',
'name' => '한글2'
),'idx = 10');
*/
/* select 사용법
include 'classes/db_class.php';
$connect = array();
$connect['host'] = 'localhost'; // 호스트명
$connect['user'] = 'root'; // 디비 유저명
$connect['pass'] = '1234'; // 디비 접속 암호
$connect['name'] = 'test2'; // 데이타베이스명
$db = new MySQL($connect);
$array = $db->select('member', array(
'field' => '*',
'where' => 'idx = 10',
'group' => '',
'order' => 'idx desc',
'limit' => ''
));
for($i=0;$i<count($array);$i++) {
echo $array[$i]['id']." ";
echo $array[$i]['name']."<br>";
}
*/
/* delete 사용법
include 'classes/db_class.php';
$connect = array();
$connect['host'] = 'localhost'; // 호스트명
$connect['user'] = 'root'; // 디비 유저명
$connect['pass'] = '1234'; // 디비 접속 암호
$connect['name'] = 'test2'; // 데이타베이스명
$db = new MySQL($connect);
$array = $db->delete('member', 'idx = 8');
*/
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