使用mysql ressources在循环内部循环

Question

I'm trying to do some loops in loop using mysql but it seems that there not interpreted

it returns only the first result then nothing even If I have many records in my database, It should return everything

below is my code that display the results

while ($cr = mysql_fetch_assoc($result)):
    $i = 0;
    ++$i;
    ?>
    <div style="width:200px"  class="fif"><table style="width:100%">
        <tr class="fbgreybox">
        <td colspan="3" style="text-align: center;font-weight: bold">
            <img src="images/calendar_2.png"> Séance du : <?php echo date('d-m-Y', strtotime($cr['record'])); ?>
        </td>
        </tr>
        <?php
        $sql = "SELECT `exercise` FROM `workouts` WHERE `record` = '{$cr['record']}' AND `user`= {$_SESSION['userid']} GROUP BY `exercise`";
        $result = mysql_query($sql);
        while ($exo = mysql_fetch_assoc($result)) :
        ?>
            <tr class="fbinfobox">
            <td colspan="3" style="text-align: left">
                <img src="images/Sport-dumbbell.png"> ////<?php echo exerciseName($exo['exercise']); ?>
            </td>
            </tr>
            <tr>
            <td style="text-align: center;font-weight: bold">Séries</td>
            <td style="text-align: center;font-weight: bold">Reps</td>
            <td style="text-align: center;font-weight: bold">Poids</td>
            </tr>
        <?php
        $rqt = "SELECT `set_number`, `reps`, `weight` FROM `workouts` WHERE `exercise` = {$exo['exercise']} AND `record` = '{$cr['record']}' AND `user` = {$_SESSION['userid']} ORDER BY `set_number`";
        $result2 = mysql_query($rqt);
        while ($detail = mysql_fetch_assoc($result2)):
            ?>
            <tr>
            <td>
                Série ////<?php echo $detail['set_number']; ?>
            </td>
            <td>
                <?php echo $detail['reps']; ?>
            </td>
            <td>
                <?php echo $detail['weight']; ?>
            </td>
            </tr>
            <?php
        endwhile;
        endwhile;
        ?>
    </table>
    </div>
    <?php
endwhile;

there is not mistakes in the code so I really do not understand why it is not interpreted.

anykind of help will be much appreciated.

Answer 1

You are using $result in both mysql_fetch_assoc() function. AVOID THAT.

In inner loop you can use another variable:

$sql = "SELECT `exercise` FROM `workouts` WHERE `record` = '{$cr['record']}' AND `user`= {$_SESSION['userid']} GROUP BY `exercise`";
$workoutsResult = mysql_query($sql);
while ($exo = mysql_fetch_assoc($workoutsResult )) :