Check bootstrap table row - javascript

I need to check/uncheck a table checkbox based on a value stored in a database. I'm not an experienced programmer. I've been google-ing this for a whole day with no luck. Hope someone's going to help me ;)

Here's the code :

echo "<table data-toggle='table' data-click-to-select='true' id='potable'>";
echo "<thead>";
echo "<tr>";
echo "<th data-field='state' data-checkbox='true'></th>";
echo "<th data-field='code'>Code</th>";
echo "<th data-field='description'>Description</th>";
echo "<th data-field='verb'>Verb</th>";
echo "<th>Actions</th>";
echo "</tr>";
echo "</thead>";
echo "<tbody>";
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)){
    extract($row);
    echo "<tr>";
    echo "<td>"; ?>
    <script>
        var select = <?php echo "{$selected}"; ?>;
        if (select == 1) {
// INSERT HERE JAVASCRIPT LINE THAT CHECKS THE CURRENT CHECKBOX
        else { 
//UNCHECK THE CURRENT CHECKBOX
        }
    </script>
    <?php
    echo "</td>";
    echo "<td>{$code}</td>";
    echo "<td>{$description}</td>";
    echo "<td>{$verb}</td>";
    echo "<a type='button' class='btn btn-primary left-margin' href='po-info.php?id={$id}'>Info</a>";
    echo "</td>";
    echo "</tr>";                                           
}
echo "</tbody>";
echo "</table>";