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Hello, just share from StackOverFlow 

function printPointVars($points)
{
    $sn_count = 1;
    $html = '';
    foreach($points as $point){
        $html .= "<div class=\"points\">"
            . "<div class=\"serial\">".$sn_count."</div>"
            . "<div class=\"pointsdesc\">"
            . $point['points_description']
            . "</div></div>";
        $sn_count++;
    }
    echo $html;
}

printPointVars($points);

If you want assign variable from loop foreach.