explode/implode from database php
<p>I'm want string out of the column data.
But it failed.</p>

<p><img src="https://i.stack.imgur.com/Ld9Wh.jpg" alt="enter image description here"></p>

<pre><code>    &lt;?php
    $conn = mysql_connect("localhost", "nantawat", "12345678") or die(mysql_error());
    $select_db = mysql_select_db("my_db", $conn) or die(mysql_error());
    $select_tbl = mysql_query("SELECT * FROM log", $conn);

    while ($fetch = mysql_fetch_object($select_tbl)) {
        $r = $fetch-&gt;data;

    $i = explode(",", $r);

    if (!isset($i[1])) {
        for ($j = 0; $j &lt;= 200; $j++) {
            $i[$j] = null;
        }
    }

    $name = $i[0];
    $mama = $i[1];

    $no = $i[2];
    $a = $i[3];
    $b = $i[4];

    echo $name . "&lt;/br&gt;";
    echo $mama . $no . $a . $b . "&lt;/br&gt;";

}

while ($data = mysql_fetch_object($select_tbl)) {

    echo $data-&gt;data . "&lt;br&gt;";
}

?&gt;
</code></pre>

<p><img src="https://i.stack.imgur.com/J6mDL.jpg" alt="enter image description here"></p>

<p>But  i want output = </p>

<pre><code>bus 
car
bike
aabus
car
bike
aabus
car
bike
aabus

ddd
ee
</code></pre>

<p>And i not </p>

<blockquote>
  <p>Notice: Undefined offset: 3 in C:\xampp\htdocs\logs\New folder
  (2)\explode.php on line 21</p>
  
  <p>Notice: Undefined offset: 4 in C:\xampp\htdocs\logs\New folder
  (2)\explode.php on line 22</p>
</blockquote>

<p>Thank You.</p>