Drucken von MySql Daten von PHP zu HTML Tooltip

Question

So bin ich neu in der Programmierung mit MySql und PHP, so bin ich nicht sicher, wie Sie die Daten von einem PHP-Skript zu einem HTML-Tooltip analysieren.

Hier ist meine PHP:

<?php 
$servername = "server"; 
$username = "username"; 
$password = "password"; 
$dbname = "dbname"; 

// Create connection 
$conn = new mysqli($servername, $username, $password, $dbname); 
// Check connection 
if ($conn->connect_error) { 
    die("Connection failed: " . $conn->connect_error); 
} 

$sql = "select courseCode, courseName from building b, room r, occupy o, timeslot t, meet m, section s, course c, timespan ts, day d, class cl where b.name = 'BH' and r.roomNum = '128' and b.buildingID = r.buildingID and o.roomID = r.roomID and t.timeID = o.timeID and t.timeID = m.timeID and m.sectionID = s.sectionID and c.courseID = s.courseID and t.spanID = ts.spanID and ts.start = '10:05' and ts.end = '11:25' and t.dayID = d.dayID and d.dayOfWeek = 'M' and cl.roomID = r.roomID and cl.sectionID = s.sectionID"; 
$result = $conn->query($sql); 

if ($result->num_rows > 0) { 
// output data of each row 
while($row = $result->fetch_assoc()) { 
    echo "Course Code: " . $row["courseCode"]. " - Name: " . $row["courseName"]."<br>"; 
} 
} else { 
echo "0 results"; 
} 
$conn->close(); 
?> 

Schließlich würde Ich mag die ausgewählten Daten in einem Tooltip platzieren ich auf ein Listenelement gesetzt haben, wo es heißt title = „“. Irgendwelche Vorschläge?

HTML:

<div class="list-group"> 
     <a class="list-group-item list-group-item-action list-group-item-success listmargin"><abbr title="" rel="tooltip">HH 201</abbr></a> 
     <a class="list-group-item list-group-item-action list-group-item-success listmargin"><abbr title="From DB </em>." rel="tooltip">HH 203</abbr></a> 

Answer 1

Genau wie Sie bereits getan haben.

<?php 
$output = ''; 
while ($row = $result->fetch_assoc()): 
    // escape data 
    $courseCode = htmlspecialchars($row['courseCode']); 
    $courseName = htmlspecialchars($row['courseName']); 

    $output .= sprintf('<a class="list-group-item list-group-item-action list-group-item-success listmargin"><abbr title="%s" rel="tooltip">%s</abbr></a>', $courseName, $courseCode); 
endwhile; 
?> 
<div class="list-group"> 
    <?= $output ?> 
</div>