图像不在PHP中显示

Question

Here don't know why image is not being displayed in php, I think this line has some problem.

echo '<img src="' . $row['pic'] . '">'; 

the full code is like this

<?php 
$result = mysqli_query($con, "SELECT name, email, branch, batch, position, pic FROM users ");
while ($row = mysqli_fetch_array($result)) {
   echo '<section>'
      . '<header>'
      . '<h2>' . $row['name'] . '</h2>'
      . '<p><span class="posted">'
      . '<br>'
      . $row['batch']
      . '<br>'
      . $row['branch']
      . '<br>'
      . $row['email']
      . '<br>'
      . 'Profession:'
      . $row['position']
      . '</header>'
      . '</section>'
      . '</div>'
      ;
} 
echo '<img src="' . $row['pic'] . '">';
?>

Answer 1

Your while(){} loop will run while mysqli_fetch_array() returns arrays with information.

In the last iteration, mysqli_fetch_array() will return NULL and the loop will stop.

At this point $row['pic'] is not set. In fact $row is no longer an array at all. $row is NULL.