Question

What is the propper syntax to grab data from all of the matching fields?

This example outputs only 1 of the matching fields:

$myvariable = "SELECT post_content 
                 FROM wp_posts 
                WHERE post_name = 'testing' 
                  AND post_status = 'publish' 
                  AND post_type = 'post'";

echo = $myvariable;

Answer 1

You need to fetch an array of that query:

<?php
$query = mysql_query("SELECT post_content FROM wp_posts WHERE post_name = 'testing' AND post_status = 'publish' AND post_type = 'post'");
while($result = mysql_fetch_array($query)){
echo $result['post_content'];
}
?>

That will loop through the result list from the query and echo the post_content field value.

EDIT: Wow… Same thing, a few seconds late. Ha!