PHP参数sqlsrv_querry，sqlsrv_fetch_array警告

Question

我在PHP中收到此警告

  

警告：sqlsrv_query（）要求参数1为resource，boolean   在第7行的C：\ xampp \ htdocs \ change_logo_proccess.php中给出

     

警告：sqlsrv_fetch_array（）期望参数1是资源，   第8行的C：\ xampp \ htdocs \ change_logo_proccess.php中给出的布尔值

     

警告：sqlsrv_query（）要求参数1为resource，boolean   在第14行的C：\ xampp \ htdocs \ change_logo_proccess.php中给出   公会徽标已设置。注意：此更新可能会在之后生效   24小时或服务器重启后！

这是我的代码：

<?php
include_once ("include/config.php");
$connectionInfo = array("Database" => "RohanGame", "UID" => $UID, "PWD" => $PASS);
$conn = sqlsrv_connect($serverName, $connectionInfo);
if ($_POST['group1'] == "1") {
    $sql = "select master_id from dbo.TNGuildMark where master_id = (select master_id from dbo.TNGuild where name = '$_POST[gbox]')";
    $stmt = sqlsrv_query($conn, $sql);
    if ($rows = sqlsrv_fetch_array($stmt)) {
        $sql1 = "update dbo.TNGuildMark set mark = 0xff where master_id = (select master_id from dbo.TNGuild where name = '$_POST[gbox]')";
        $stmt1 = sqlsrv_query($conn, $sql1);
        echo "Your Guild Logo Has Been Set .NOTICE: This update might take effect after 24 hrs OR after server restart!";
    } else {
        $sql2 = "insert into dbo.TNGuildMark(mark,master_id) select 0xff, master_id from dbo.TNGuild where name = '$_POST[gbox]'";
        $stmt2 = sqlsrv_query($conn, $sql2);
        echo "Your Guild Logo Has Been Set .NOTICE: This update might take effect after 24 hrs OR after server restart!";
    }
}