What does this complicated Print() example do?

print ($i?', ':'').str_replace('_', ' ', $r3['word']);

PHP:

This line is inside a While loop, so $i is the counter and $r3['word'] is an element from a mysql_fetch'd array, but what does this line of code do and how do I simplify it? All I want is to apply a ucfirst() function to the string before printing/echoing, but I can't seem get it to work currently.

In case you are curious, here's a bigger piece of code surrounding this line:

$q = mysql_query('SELECT synset_id FROM '.$sqlpre.'synset WHERE word="'.str_replace(' ', '_', $w).'" ORDER BY w_num ASC');
$n = mysql_num_rows($q);

  while($r = mysql_fetch_array($q)) {
    if($n > 1)
      print '<li>';
    $q2 = mysql_query('SELECT gloss FROM '.$sqlpre.'gloss WHERE synset_id='.$r['synset_id']);
    $r2 = mysql_fetch_array($q2);
    print htmlspecialchars($r2['gloss']);
    $q2 = mysql_query('SELECT synset_id_2 FROM '.$sqlpre.'similar WHERE synset_id_1='.$r['synset_id']); 
    $n2 = mysql_num_rows($q2);
    if($n2) {
      print ' <em>';
      $i = 0;
      $syns = array();
      while($r2 = mysql_fetch_array($q2)) {
        $q3 = mysql_query('SELECT word FROM '.$sqlpre.'synset WHERE synset_id='.$r2['synset_id_2']);
        $r3 = mysql_fetch_array($q3);
        if(!in_array($r3['word'], $syns)) {
          print ($i?', ':'').str_replace('_', ' ', $r3['word']);
          array_push($syns, $r3['word']);
          $i++;
        }
      }
      print '</em>';
    }

    print '</li>'; 
    
  }

PHP:

 

print ($i?', ':'').str_replace('_', ' ', $r3['word']);

PHP:

basically if var $i is more than 0 add a comma and a space ', ' else nothing

then append the term

str_replace('_', ' ', $r3['word']);

PHP:

so if the term is "term_one" and it's on the second term which is "another_term" the end result would be

term one, another term

I am guessing you want

Term one, Another term ?

print ($i?', ':'').ucfirst(str_replace('_', ' ', $r3['word']));

PHP:

or use ucwords for

Term One, Another Term

print ($i?', ':'').ucwords(str_replace('_', ' ', $r3['word']));

PHP:

I bet you used

print ucfirst(($i?', ':'').str_replace('_', ' ', $r3['word']));

PHP:

this would be incorrect

simplified the original code "no capitalization" would look something like

$newWord = str_replace('_', ' ', $r3['word']);
if($i>0) print ', ';
print $newWord;

PHP:

 

Thanks for the information. It still looks so much complicated, but I think I got it.

So tha's basically just 2 print()'s on one line. Like:

echo $variable.$another;

PHP: