实用简单的mysql 数据库连接类
<?php
class DB {
//database connection
var $con = FALSE;
function DB($MYSQL_HOST = MYSQL_HOST, $MYSQL_USER = MYSQL_USER, $MYSQL_PASS = MYSQL_PASS, $MYSQL_DB = MYSQL_DB) {
$this->con = @mysql_connect($MYSQL_HOST, $MYSQL_USER, $MYSQL_PASS) or die("Could not connect to database");
if ($this->con) {
@mysql_select_db($MYSQL_DB, $this->con) or die("Could not select database");
}
return $this->con;
}
function Query($sql, $tran = false) {
// if (!file_exists(MYSQL_LOG))
// {
// @umask(0);
// @mkdir(MYSQL_LOG, 0777);
// }
// ¼־
//$fp = @fopen(MYSQL_LOG.date("Ymd").".txt", "a");
// д־
// @fwrite($fp, date("Y-m-d H:i:s")."|$sql ");
// @fclose($fp);
$this->sql = $sql;
if ($tran) {
$this->result = @mysql_query($this->sql) OR $this->RollBack();
return $this->result;
} else {
mysql_query("SET NAMES 'utf8'");
//mysql_query("SET NAMES 'gbk'");
$this->result = @mysql_query($this->sql);
return $this->result;
}
}
function RollBack() {
$this->Query("ROLLBACK;");
die("MySQL ROLLBACK;");
}
function NumRows($result) {
$this->result = $result;
return @mysql_num_rows($this->result);
}
function FetchRow($result) {
$this->result = $result;
return @mysql_fetch_row($this->result);
}
function FetchArray($result) {
$this->result = $result;
return @mysql_fetch_array($this->result, MYSQL_ASSOC);
}
function FetchArray2($result) {
$this->result = $result;
return @mysql_fetch_array($this->result, MYSQL_BOTH);
}
function FetchObject($result) {
$this->result = $result;
return @mysql_fetch_object($this->result);
}
function FreeResult($result) {
$this->result = $result;
return @mysql_free_result($this->result);
}
function DataSeek($result) {
//复位记录集指针
$this->result = $result;
return mysql_data_seek($this->result, 0);
}
function InsertID() {
//$this->con = $con;
return @mysql_insert_id($this->con);
}
function Close() {
if ($this->con) {
@mysql_close($this->con);
}
}
}文章链接:http://www.phprm.com/database/a2e5d4805f5dfda4448ed56a9983fb3c.html
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