Question

It says the error is in the while loop.

    <?php

    $my_connection = mysql_connect('localhost','root','');

    if(!$my_connection){
            die('Could not connect: ' . mysql_error());
    }

    echo 'Connected successfully' . '<br><br>';

    $my_database = mysql_select_db('jihoon');

    if(!$my_database){
        die('Could not find database: ' . mysql_error());
    }

    $query='SELECT * FROM comments";

    $result=mysql_query($query);

    $my_rows;

    while($row = mysql_fetch_array($result, MYSQL_ASSOC)){
        $my_rows = $my_rows . "id : {$row['id']}";
    }

    mysql_close($my_connection);

    ?>

Answer 1

If you take a look at the syntax-coloring of your question, here on StackOverflow, you’ll notice that it starts getting broken at this line :

$query='SELECT * FROM comments";

You must use the same kind of quote at the beginning and end of your string.

So, you should use either :

$query='SELECT * FROM comments';

or :

$query="SELECT * FROM comments";

But not a bit of both 😉