1.下载sqlserver扩展

https://www.microsoft.com/en-us/download/details.aspx?id=20098

解压到

\phpStudy\PHPTutorial\php\php-7.2.1-nts\ext

 php.int

extension=php_pdo_sqlsrv_72_nts_x64.dll
extension=php_sqlsrv_72_nts_x64.dll

安装 msodbcsql.msi 

这货要按照 64位

https://www.microsoft.com/en-us/download/details.aspx?id=36434

不然报错

This extension requires the Microsoft ODBC Driver for SQL Server. Access the following URL to download the ODBC Driver for SQL Server for x64

代码:sqlcon.php

 $serverName = "localhost";
 $connectionInfo = array( "Database"=>"DBWMS", "UID"=>"sa", "PWD"=>"123123");
 $conn = sqlsrv_connect( $serverName, $connectionInfo );
 if( $conn === false ) {
 die( print_r( sqlsrv_errors(), true));
 }
if( $conn === false ) {
    echo "Unable to connect.";
    die(var_dump(sqlsrv_errors(), true));
}

header("Content-type: text/html; charset=utf-8");
include "sqlcon.php";

$order = $_POST['OrderNum'];
//$order = "TY20171121103652803442";
$sql = "SELECT  ID,ExpressNum,OrderNum,NetWeight,GrossWeight FROM dbo.St_UserOrder where OrderNum=  '{$order}'";

$stmt = sqlsrv_query( $conn, $sql );

$stmt = sqlsrv_fetch_array($stmt);

echo json_encode($stmt);

INSERT INTO 语句

INSERT INTO 语句用于向表格中插入新的行。

语法

INSERT INTO 表名称 VALUES (值1, 值2,....)

我们也可以指定所要插入数据的列：

INSERT INTO table_name (列1, 列2,...) VALUES (值1, 值2,....)

public function __construct()
{

    $dbName = "sqlsrv:Server=Localhost;Database=tset";
    $dbUser = "sa";

    $dbPassword = "root";
    $this->pdo =  new PDO($dbName, $dbUser, $dbPassword);
}
对比

mysql

 $this->b =  $config;
    $this->pdo = new PDO('mysql:host=Localhost;port=3301;dbname=test', "123123", "123123");

}
双引号引发的

$sth = $this->pdo->prepare('SELECT * FROM xxx WHERE id =:id');//双引号失效

sql sever 
SELECT * FROM `pmw_St_UserOrder` WHERE id = :id  


mysql 

SELECT * FROM `pmw_St_UserOrder` WHERE id = :id

 $sth->execute(array(':id'=>'1'));


$results = $sth->fetchAll(PDO::FETCH_ASSOC);

$res = $db->query($sql);
$json_arr = array();
while ($row = $res->fetch()){
    $json_arr[]=$row;
}