Question

        <h2>User Profile: <?php if($sth->rowCount() > 0) {$row = $sth->fetch(PDO::FETCH_ASSOC);echo "&nbsp;{$row['uname']}";} else {echo "No data.";}?></h2>
        <span class="two">Registered Date: <?php if($sth->rowCount() > 0) {$row = $sth->fetch(PDO::FETCH_ASSOC);echo "&nbsp;{$row['regDate']}";} else {echo "No data.";}?> </span><br />
        <span class="three">Current Grade: <?php if($sth->rowCount() > 0) {$row = $sth->fetch(PDO::FETCH_ASSOC);echo "&nbsp;{$row['currGrade']}";} else {echo "No data.";}unset($sth);?> </span><br />

Error I get: Fatal error: Call to a member function rowCount() on line 30

Line 30 is:

    <span class="three">Current Grade: <?php if($sth->rowCount() > 0) {$row = $sth->fetch(PDO::FETCH_ASSOC);echo "&nbsp;{$row['currGrade']}";} else {echo "No data.";}unset($sth);?> </span><br />

SQL behind the scenes:

#Get Student Info :: for Page Content
$pdo = new PDO('mysql:host=localhost;dbname=ureviewdu', $u, $p);
$pdo->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
$sth = $pdo->prepare('
    SELECT uname, currGrade, regDate
    FROM Student
    WHERE usrID = ?;
    ;');
$sth->execute(array(
    $userID
));

This updated code yields nothing for each query… why?

Answer 1

You’re unsetting the PDOStatement $sth variable at the end of each block. You won’t be able to use it after unsetting it.

You should probably just create one logical branch based on the result of the fetch, eg

<?php if ($row = $sth->fetch(PDO::FETCH_ASSOC)) : ?>
<h2>User Profile: <?php echo htmlspecialchars($row['uname']) ?></h2>
<span class="two">Registered Date: <?php echo htmlspecialchars($row['regDate']) ?></span><br />
<span class="three">Current Grade: <?php echo htmlspecialchars($row['currGrade']) ?></span><br />
<?php $sth->closeCursor(); else : ?>
<h2>User Profile: No data.</h2>
<span class="two">Registered Date: No Data.</span><br />
<span class="three">Current Grade: No Data.</span><br />
<?php endif ?>