No data shown when using correct query - php

Question

I got a small for each loop that I want to test. But it only shows me two empty list items. I also tested the SQL in phpmyadmin and it returns a correct table. I want to show the title from that table but like I said, I am getting two empty list items.
Does anybody know what I am doing wrong?
<?
// content
$content = "SELECT * FROM `snm_content` WHERE catid = 13";
$contentcon = $conn->query($content);
$contentcr = array();
while ($contentcr[] = $contentcon->fetch_array());
foreach($contentcr as $content)
{
$contentje .= '<li>'.$contentcr['title'].'</li>';
}
echo $contentje;
?>

Answer 1

Replace $contentcr by $content inside the foreach loop.
<?
// content
$content = "SELECT * FROM `snm_content` WHERE catid = 13";
$contentcon = $conn->query($content);
$contentcr = array();
while ($contentcr[] = $contentcon->fetch_array());
foreach($contentcr as $content)
{
$contentje .= '<li>'.$content['title'].'</li>'; // Here
}
echo $contentje;
?>

Answer 2

Try this:
while ($contentcr = $contentcon->fetch_array()) {
$contentje .= '<li>'.$contentcr['title'].'</li>';
}
echo $contentje;

Answer 3

Remove foreach use only while
while ($contentcr = $contentcon->fetch_array());{
$contentje .= '<li>'.$contentcr['title'].'</li>';
}