How To Retrieve Error Messages using mssql_get_last_message()?

When you call mssql_query() to execute a SQL statement, and the execution failed on the SQL Server, you can use mssql_get_last_message() function to retrieve the error messages.

The tutorial script below shows you a good example:

<?php
  $con = mssql_connect('LOCALHOST','sa','FYIcenter');
  mssql_select_db('FyiCenterData', $con);

  # dropping a table
  $sql = 'DROP TABLE fyi.center';
  $res = mssql_query($sql, $con);
  if (!$res) {
    print("Execution failed:\n");
    print("   Error: ".mssql_get_last_message()."\n");
  } else {
    print("Execution was successful.\n");
  }

  mssql_close($con); 
?>

If you run this script for the first time, you will get this output:

Execution was successful.

If you run this script again, the SQL statement will fail on the SQL Server, and you will get:

Warning: mssql_query(): message: Cannot drop the table 
'fyi.center', because it does not exist or you do not 
have permission. (severity 11) in C:\test\fyi-center.php 
on line 7

Execution failed:
   Error: Cannot drop the table 'fyi.center', because 
it does not exist or you do not have permission.

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