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<?php
class Database {
private $host;
private $db;
private $user;
private $password;
private $handler;
function __construct($host, $db, $user, $password) {
$this->host = $host;
$this->db = $db;
$this->user = $user;
$this->password = $password;
$this->connect();
$this->selectDB();
}
private function connect(){
$this->handler = mysql_connect($this->host, $this->user, $this->password);
}
private function selectDB(){
mysql_select_db($this->db, $this->handler);
mysql_set_charset("utf-8");
}
public function query($sql){
$query = mysql_query($sql) or die(mysql_error());
return $query;
}
private function resultArray($query) {
$result = array();
if(mysql_num_rows($query) > 0){
while($r = mysql_fetch_assoc($query)){
$result[] = $r;
}
}
return $result;
}
private function rowArray($query){
$result = mysql_fetch_assoc($query);
return $result;
}
private function affectedRows(){
return mysql_affected_rows();
}
private function insertId(){
return mysql_insert_id();
}
function endsWith($haystack, $needle) {
return $needle === "" || strpos($haystack, $needle, strlen($haystack) - strlen($needle)) !== FALSE;
}
function startsWith($haystack, $needle) {
return $needle === "" || strrpos($haystack, $needle, -strlen($haystack)) !== FALSE;
}
public function select($table = "", $ids = "") {
if ($table != "") {
$sql = "";
if( $ids == "" ) {
$sql = "SELECT * FROM " . $table;
} else {
if($this->endsWith($ids,",")) {
$ids = substr($ids, 0, strlen($ids) - 1);
}
$sql = "SELECT * FROM " . $table . " WHERE id IN (".$ids.")";
}
$query = $this->query($sql);
$result = $this->resultArray($query);
return $result;
}
}
public function selectIdx($table = "", $keyName = "", $id = 0) {
if ($table != "" && $keyName != "" && $id != 0) {
$sql = "SELECT * FROM " . $table . " WHERE ".$keyName." = '".mysql_real_escape_string($id)."'";
$query = $this->query($sql);
$result = $this->resultArray($query);
return $result;
}
}
public function selectById($table = "", $id = 0) {
if ($table != "" && $id != 0) {
$sql = "SELECT * FROM " . $table . " "
. "WHERE ID = '" . mysql_real_escape_string($id) . "'";
$query = $this->query($sql);
$db_row = $this->rowArray($query);
}
return $db_row;
}
public function selectByConditions($table = "", $conditions = array(), $other = "") {
$i = 0;
if ($table != "") {
$sql = "";
$sql = "SELECT * FROM " . $table;
if($conditions != array()) {
$wherePart = " WHERE ";
foreach ($conditions as $key => $value) {
$wherePart .= " " . $key . " = '" . mysql_real_escape_string($value) . "'";
if ($i < count($conditions) - 1) {
$wherePart .= " AND ";
}
$i++;
}
if($this->endsWith(trim($wherePart), ",")) {
$wherePart = substr(trim($wherePart), 0, strlen(trim($wherePart)) - 1);
}
$sql .= $wherePart;
}
$sql .= " ".$other;
$query = $this->query($sql);
$result = $this->resultArray($query);
return $result;
}
}
public function deleteById($table = "", $id = 0) {
if (!empty($table) && $id > 0) {
$sql = "DELETE FROM " . $table . " "
. "WHERE id = '" . mysql_real_escape_string($id) . "'";
$this->query($sql);
if ($this->affectedRows()) {
return TRUE;
}
}
return FALSE;
}
public function delteIdx($table = "", $columnName, $id = 0) {
if( !empty($table) && $id > 0 ) {
$sql = "DELETE FROM ".$table." "
. "WHERE ".$columnName." = '".mysql_real_escape_string($id)."'";
$this->query($sql);
if($this->affectedRows()) {
return TRUE;
}
}
return FALSE;
}
public function insert($table = "", $data = array(), $ignore = array()) {
if ($table != "" && $data != array()) {
$i = 0;
$setPart = " SET ";
foreach ($data as $key => $value) {
if(!in_array($key, $ignore)) {
if($this->startsWith($key, "Date_")) {
$key = substr($key, 5, strlen($key) - 5);
}
$setPart .= " " . $key . " = '" . mysql_real_escape_string($value) . "'";
if ($i < count($data) - 1) {
$setPart .= ", ";
}
}
$i++;
}
if($this->endsWith(trim($sql), ",")) {
$sql = substr(trim($sql), 0, strlen(trim($sql)) - 1);
}
$sql = "INSERT INTO " . $table . $setPart . "";
if ($this->query($sql)) {
return $this->insertId();
}
return FALSE;
}
}
public function update($table = "", $data = array(), $id = 0, $ignore = array()) {
if ($table != "" && $data != array()) {
$i = 0;
$setPart = " SET ";
foreach ($data as $key => $value) {
if(!in_array($key, $ignore)) {
if($this->startsWith($key, "Date_")) {
$key = substr($key, 5, strlen($key) - 5);
}
$setPart .= " " . $key . " = '" . mysql_real_escape_string($value) . "'";
if ($i < count($data) - 1) {
$setPart .= ", ";
}
}
$i++;
}
if($this->endsWith(trim($setPart), ",")) {
$setPart = substr(trim($setPart), 0, strlen(trim($setPart)) - 1);
}
$sql = "UPDATE " . $table . " " . $setPart;
if( $id > 0 ) {
$sql .= " WHERE id = '" . $id . "'";
}
// echo $sql."<br />";
// die();
$this->query($sql);
if ($this->affectedRows()) {
return TRUE;
}
return FALSE;
}
}
}
?>
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