Using Custom Value Options in PHP

by

use get_post_meta($post->ID, 'your key', true); instead of get_meta();
compare values like

$developing = get_post_meta($post->ID, 'developing', true);

if ($developing == 'value') {
  // value is matched
} elseif ($developing == 'value2') {
  // value 2 is matched
} else {
  // not matched
}