Question

I’m calling from a database the information of posts in a topic. I am using mysql_fetch_assoc() to do so. I’ve got the first post working, but I don’t know how to access the replies. So I figured if I got the list of posts in that topic, I could do so.

Here is a sample of my code that I’m working on:

$result1 = mysql_query("SELECT * FROM posts WHERE topic_id='" . $topicinfo['id'] . "'");
  while($row = mysql_fetch_assoc($result1)){
  $postinfo = print_r($row);
}

$topicinfo[] is an array of info on the topic.

The problem with this code is that I would like to save the results in a variable, not just automatically printing it out.

Is this possible?

Answer 1

What you want to do is push all of the results you extract from the database into an array.

$posts = array();
$result = mysql_query("SELECT * FROM posts ...");
while($row = mysql_fetch_assoc($result)){
    $posts[] = $row;
}

Now the array $posts will contain all the results from the database. The syntax [] is simply shorthand for array_push()

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Using older MySQL library

I suggest you avoid using the dated mysql_* functions. Using them for new code is highly
discouraged. More modern alternatives are available and better
maintained. Instead, consider learning about
prepared statements, and that you use either
PDO or MySQLi. When used strictly,
they avoid the tedious and manual escaping part, which thus become heaps easier and (as a by-product)
safer to use. Check out this PDO tutorial for a good place to start.