sqlsrv_fetch_array() expects parameter 1 to be resource, boolean given in

im trying print records from my db (IIS, MSSQL PHP) but i have this error…

Warning: sqlsrv_fetch_array() expects parameter 1 to be resource, boolean given in

<?php

$serverName ="nameSQLEXPRESS";
 $usr="sa";
 $pwd="pasw";
 $db="dbname";

$connectionInfo = array("UID" => $usr, "PWD" => $pwd, "Database" => $db);

$conn = sqlsrv_connect($serverName, $connectionInfo);



  $sql = "SELECT first_col, s_col, t_col,  FROM names ";
 $res = sqlsrv_query($conn,$sql);
  while ($row = sqlsrv_fetch_array($res)) {
    print(
    $row['first_col'].",".$row['s_col'].",".$row['t_col'].");

 }  


sqlsrv_close( $conn); 
?>

Answer

Your query failed. This causes sqlsrv_query() to return false.

Your error in your query is an errant comma:

$sql = "SELECT first_col, s_col, t_col,  FROM names ";
                                    ^^^^
                                    HERE

Remove it and your query should work.

FYI, you don’t check for errors in your code. You should always check to see if something failed, and if so, get the error message. You would have caught this quickly if you did.