Two column layout using Bootstrap

Can anyone help me with this?

<div class="container">

    <div class="row">
          <div class="col-sm-8">

            <div class="row" style="margin-bottom: 30px;">

                        <div class="col-xs-12 col-sm-6">

                            content

                        </div>

                        <div class="col-xs-12 col-sm-6">

                            content

                        </div>

            </div>

        </div>

    </div>

    <div class="col-sm-4">

                <div class="row">

                    <div class="col-xs-12 col-sm-12">

                            content

                    </div>

                </div>
    </div>

What I'm trying to achieve is to post articles in 2 columns and the other column is for the sidebar. I've read online for "php loop" but I have very limited knowledge with php.