1、PHP連接MYSQL數(shù)據(jù)庫的代碼
<?php $mysql_server_name='localhost'; //改成自己的mysql數(shù)據(jù)庫服務(wù)器 $mysql_username='root'; //改成自己的mysql數(shù)據(jù)庫用戶名 $mysql_password='12345678'; //改成自己的mysql數(shù)據(jù)庫密碼 $mysql_database='mycounter'; //改成自己的mysql數(shù)據(jù)庫名 $conn=mysql_connect($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!數(shù)據(jù)庫mycounter已經(jīng)成功建立!"; ?>
2、PHP連接ACCESS數(shù)據(jù)庫的方法
<? $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();  }  ?>3、PHP連接MS SQL數(shù)據(jù)庫的方法
	1.安裝SQL服務(wù)器并添加PHP的MSSQL擴(kuò)展
	2.使用以下代碼連接并測(cè)試
< ?php  $myServer = localhost; //主機(jī) $myUser = sa; //用戶名 $myPass = password; //密碼 $myDB = Northwind; //MSSQL庫名 $s = @mssql_connect($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 ;  while($row = mssql_fetch_array($result))  {  echo < li> . $row[Employee] . < /li>;  }  ?>4、PHP連接Oracle數(shù)據(jù)庫的方法
PHP提供了兩套函數(shù)與Oracle連接,分別是ORA_和OCI函數(shù)。其中ORA_函數(shù)略顯陳舊。OCI函數(shù)更新?lián)f更好一些。兩者的使用語法幾乎相差無幾。你的PHP安裝選項(xiàng)應(yīng)該可以支持兩者的使用。
<? if ($conn=Ora_Logon("user@TNSNAME","password"))  { echo "SUCCESS ! Connected to database/n";  }else  {echo "Failed 
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