Question

I retrieve an array of friends using the graph api, and have a list of users on a MySQL table. I (sort of) know how to use join, but I don’t know how you would go about comparing an array in php to a mysql table. Basically the Facebook ID is what I am looking to match, and then drawing all of the data from the row if it matches.

Thanks,
Michael Amici

Answer 1

$sql = mysql_query("SELECT * FROM users WHERE fb_id IN (12345,1234,123,12346)");

while($row = mysql_fetch_array($sql)){
  echo $row['username'];
}

Note: Make sure you add an index on the column that holds the facebook ids.