PHP连接数据库之PHP连接MYSQL数据库代码
< ?php $mysql_server_name= localhost //改成自己的mysql数据库服务器 $mysql_username= root //改成自己的mysql数据库用户名 $mysql_password= //改成自己的mysql数据库密码 $mysql_database= mycounter //改成自己的mysql数据库名 $conn=mysql_connect($mysql_server_name $mysql_username $mysql_password $mysql_database) $sql= CREATE DATABASE mycounter DEFAULT CHARACTER SET gbk COLLATE gbk_chinese_ci mysql_query($sql) $sql= CREATE TABLE `counter` (`id` INT( ) UNSIGNED NOT NULL AUTO_INCREMENT `count` INT( ) UNSIGNED NOT NULL DEFAULT PRIMARY KEY ( `id` ) ) TYPE = innodb mysql_select_db($mysql_database $conn) $result=mysql_query($sql) //echo $sql mysql_close($conn) echo "Hello!数据库mycounter已经成功建立!" ?>PHP连接数据库之PHP连接ACCESS数据库代码方法
< ? $conn = new ("ADODB Connection") $connstr = "DRIVER={Microsoft Access Driver (* mdb)} DBQ=" realpath("data/db mdb") $conn >Open($connstr) $rs = new ("ADODB RecordSet") $rs >Open("select * from szd_t" $conn ) while(! $rs >eof) { $f = $rs >Fields( ) echo $f >value $rs >MoveNext() } ?>
PHP连接数据库之PHP连接MS SQL数据库代码方法
安装SQL服务器并添加PHP的MSSQL扩展
使用以下代码连接并测试
< ?php $myServer = localhost //主机 $myUser = sa //用户名 $myPass = password //密码 $myDB = Northwind //MSSQL库名 $s = @mssql_connect($myServer $myUser $myPass) or die(Couldnt connect to SQL Server on $myServer) $d = @mssql_select_db($myDB $s) or die(Couldnt open database $myDB) $query = SELECT TitleOfCourtesy+ +FirstName+ +LastName AS Employee $query = FROM Employees $query = WHERECountry=USA AND Left(HomePhone ) = ( ) $result = mssql_query($query) $numRows = mssql_num_rows($result) echo <h > $numRows Row ($numRows == ? : s) Returned </ h > while($row = mssql_fetch_array($result)) { echo <li> $row[Employee] </li> } ?>
PHP连接数据库之PHP连接Oracle数据库
PHP提供了两套函数与Oracle连接 分别是ORA_和OCI函数 其中ORA_函数略显陈旧 OCI函数更新据说更好一些 两者的使用语法几乎相差无几 你的PHP安装选项应该可以支持两者的使用
< ? if ($conn=Ora_Logon("user@TNSNAME" "password")) { echo "SUCCESS ! Connected to databasen" }else {echo "Failed : ( Could not connect to databasen"} Ora_Logoff($conn) phpinfo() ?> lishixinzhi/Article/program/PHP/201405/30761
phpstprm在数据库写代码 *** 作方法:
1、打开phpstorm,选择view中的ToolWindows,再选择Database。
2、选择“+”号,—>datasource---->mysql点击打开。
3、第一次打开会提示MySQL驱动未安装,点击下载,会自动安装。
4、填写配置参数。
5、成功之后点击右下角的OK,进入下一个页面。
6、找到新建的数据库名称,右击—>new–>table,这样就创建好了一个表格。
7、输入表格名,点击“+”
<?phpclass MySQL{
private $host //服务器地址
private $name //登录账号
private $pwd //登录密码
private $dBase //数据库名称
private $conn //数据库链接资源
private $result //结果集
private $msg //返回结果
private $fields //返回字段
private $fieldsNum //返回字段数
private $rowsNum //返回结果数
private $rowsRst //返回单条记录的字段数组
private $filesArray = array() //返回字段数组
private $rowsArray = array() //返回结果数组
private $charset='utf8' //设置 *** 作的字符集
private $query_count=0//查询结果次数
static private $_instance //存储对象
//初始化类
private function __construct($host='',$name='',$pwd='',$dBase=''){
if($host != '') $this->host = $host
if($name != '') $this->name = $name
if($pwd != '') $this->pwd = $pwd
if($dBase != '') $this->dBase = $dBase
$this->init_conn()
}
//防止被克隆
private function __clone(){}
public static function getInstance($host='',$name='',$pwd='',$dBase=''){
if(FALSE == (self::$_instance instanceof self)){
self::$_instance = new self($host,$name,$pwd,$dBase)
}
return self::$_instance
}
public function __set($name,$value){
$this->$name=$value
}
public function __get($name){
return $this->$name
}
//链接数据库
function init_conn(){
$this->conn=@mysql_connect($this->host,$this->name,$this->pwd) or die('connect db fail !')
@mysql_select_db($this->dBase,$this->conn) or die('select db fail !')
mysql_query("set names ".$this->charset)
}
//查询结果
function mysql_query_rst($sql){
if($this->conn == '') $this->init_conn()
$this->result = @mysql_query($sql,$this->conn)
$this->query_count++
}
//取得字段数
function getFieldsNum($sql){
$this->mysql_query_rst($sql)
$this->fieldsNum = @mysql_num_fields($this->result)
}
//取得查询结果数
function getRowsNum($sql){
$this->mysql_query_rst($sql)
if(mysql_errno() == 0){
return @mysql_num_rows($this->result)
}else{
return ''
}
}
//取得记录数组(单条记录)
function getRowsRst($sql,$type=MYSQL_BOTH){
$this->mysql_query_rst($sql)
if(empty($this->result)) return ''
if(mysql_error() == 0){
$this->rowsRst = mysql_fetch_array($this->result,$type)
return $this->rowsRst
}else{
return ''
}
}
//取得记录数组(多条记录)
function getRowsArray($sql,$type=MYSQL_BOTH){
!empty($this->rowsArray) ? $this->rowsArray=array() : ''
$this->mysql_query_rst($sql)
if(mysql_errno() == 0){
while($row = mysql_fetch_array($this->result,$type)) {
$this->rowsArray[] = $row
}
return $this->rowsArray
}else{
return ''
}
}
//更新、删除、添加记录数
function uidRst($sql){
if($this->conn == ''){
$this->init_conn()
}
@mysql_query($sql)
$this->rowsNum = @mysql_affected_rows()
if(mysql_errno() == 0){
return $this->rowsNum
}else{
return ''
}
}
//返回最近插入的一条数据库的id值
function returnRstId($sql){
if($this->conn == ''){
$this->init_conn()
}
@mysql_query($sql)
if(mysql_errno() == 0){
return mysql_insert_id()
}else{
return ''
}
}
//获取对应的字段值
function getFields($sql,$fields){
$this->mysql_query_rst($sql)
if(mysql_errno() == 0){
if(mysql_num_rows($this->result) >0){
$tmpfld = @mysql_fetch_row($this->result)
$this->fields = $tmpfld[$fields]
}
return $this->fields
}else{
return ''
}
}
//错误信息
function msg_error(){
if(mysql_errno() != 0) {
$this->msg = mysql_error()
}
return $this->msg
}
//释放结果集
function close_rst(){
mysql_free_result($this->result)
$this->msg = ''
$this->fieldsNum = 0
$this->rowsNum = 0
$this->filesArray = ''
$this->rowsArray = ''
}
//关闭数据库
function close_conn(){
$this->close_rst()
mysql_close($this->conn)
$this->conn = ''
}
//取得数据库版本
function db_version() {
return mysql_get_server_info()
}
}
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