几种常用PHP连接数据库的代码

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='12345678'; 

//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(255) UNSIGNED NOT NULL

 

AUTO_INCREMENT ,`count` INT(255)

 

UNSIGNED NOT NULL DEFAULT 0,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！";   

?> 
复制代码PHP连接数据库之PHP连接ACCESS数据库代码方法 < ?  

$conn = new com("ADODB.Connection");   

$connstr = "DRIVER={Microsoft

 

Access Driver (*.mdb)};

DBQ=". realpath("data/db.mdb");  

 

$conn->Open($connstr);   

$rs = new com("ADODB.RecordSet");   

$rs->Open("select *

 

from szd_t",$conn,1,1);  

 

while(! $rs->eof) {   

$f = $rs->Fields(1);   

echo $f->value;   

$rs->MoveNext();   

}   

?>
复制代码PHP连接数据库之PHP连接MS SQL数据库代码方法
1.安装SQL服务器并添加PHP的MSSQL扩展
2.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 .= WHERE Country=USA 

 

AND Left(HomePhone, 5) = (206);  

 

$result = mssql_query($query);   

$numRows = mssql_num_rows($result);   

echo < h1> . $numRows . Row .

 

($numRows == 1 ? : s) . Returned </ h1>;  

 

while($row = mssql_fetch_array($result))   

{   

echo < li> . $row[Employee] . < /li>;   

}   

?> 
复制代码PHP连接数据库之PHP连接Oracle数据库 <　? 

if ($conn=Ora_Logon

 

("user@TNSNAME","password"))  

 

{ echo "SUCCESS ! 

 

Connected to database/n";  

 

}else   

{echo "Failed :-( 

 

Could not connect to database/n";}  

 

Ora_Logoff($conn);   

phpinfo();   

?>  
 
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