如何在PHP中获取SQL Server触发器错误？

<?php
$serverName = "your_server_name";
$connectionOptions = array(
    "Database" => "your_database_name",
    "Uid" => "your_username",
    "PWD" => "your_password"
);

try {
    $conn = sqlsrv_connect($serverName, $connectionOptions);
    if ($conn === false) {
        die(print_r(sqlsrv_errors(), true));
    }

    $query = "INSERT INTO your_table (column1, column2) VALUES ('value1', 'value2')";
    $result = sqlsrv_query($conn, $query);

    if ($result === false) {
        $errorMessage = sqlsrv_errors();
        $triggerError = sqlsrv_query($conn, "SELECT ERROR_MESSAGE()");
        $triggerErrorMessage = sqlsrv_fetch_array($triggerError, SQLSRV_FETCH_ASSOC);
        echo "Error: " . $errorMessage[0]['message'] . "<br>";
        echo "Trigger Error: " . $triggerErrorMessage[''];
    }

    sqlsrv_close($conn);
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}
?>