PHP retrieving content of database - php

Question

I have a database with a few tables in it. The table i'm working on has 6 columns in it,
school_id, title, location, content, class_date and user_id
The school_id is unique (ranging from 1-20) and there are 4 different user_id (ranging from 1-4).....I'm working on a site which has a table that displays the information about the user and it's correspondence. I have a ReadMore link in the last column of the displayed table, my question is this, when I click the ReadMore link I want it to display the content field in the database based on which event is clicked.
For the login, the user is asked their user_id as their password.
//$T is called from a previous page which is the user_id or the password
$T = $_SESSION["ID"];
$INFO= $dbc->query("SELECT content FROM events where school_id='$T'");
$a = $INFO->fetch();
$b = $a['content'];
print_r($b);
THE ABOVE CODE IS HOW I TRY TO PRINT OUT THE CORRECT CONTENT BUT ONLY THE FIRST INSTANCE IS PRINTED OUT
THE BELOW CODE IS HOW THE TABLE IS DISPALYED ON MY SITE
<?php
$gold= $dbc->query("SELECT * FROM events WHERE user_id='$idcheck' ORDER BY event_dateLIMIT 10");
$x = $gold->fetchAll();
echo "<table border = '1'>";
echo "<tr>
<td> Event </td>
<td> Date of Event </td>
<td> Location </td>
<td> Event Information</td>
</tr>";
foreach ($r as $back) {
$title = $back['title'];
$eventdate = $back['class_date'];
$location = $back['location'];
echo "<tr>";
echo "<td>$title</td>";
echo "<td>$eventdate</td>";
echo "<td>$location</td>";
echo "<td>";
?>
<form action="displaycontent.php" method="post">
<input type="submit" value="Read More">
</form>
<?php
echo "</td>";
echo "</tr>";
}
echo "</table>";
?>

Answer 1

fetch method returns next found row from your statement. You have to iterate over your result to get all rows.
Something like
while ($row = $INFO->fetch()) {
$b[] = $row;
}
Then have a look at print_r($b). It should look like
array(0=>array('content'=>'Some content1'),
1=>array('content'=>'Some content2'), ....)
And your way of outputting the result should work.