Mysql problem

Can someone tell my whats wrong with my mysql code? It doesnt display the teamspeak password.

	$result = mysql_query("SELECT * from phpbb_posts_text WHERE 'post_id' = 35"); // GET TEAMSPEAK PASSWORD

      $ts = $r["post_text"];
      echo "TEAMSPEAK PASSWORD: $ts";

‘post_id’ is a string and will never be equal to the value 35. remove the quotes and it becomes the column named post_id