1  <?php
 2  function word_filter_callback($m) {
 3    static $vals = array(
 4      'smh' => 'baka',
 5      'SMH' => 'BAKA',
 6      'tbh' => 'desu',
 7      'TBH' => 'DESU',
 8      'fam' => 'senpai',
 9      'FAM' => 'SENPAI',
10      'Fam' => 'Senpai',
11      'fams' => 'senpaitachi',
12      'FAMS' => 'SENPAITACHI',
13      'FAMs' => 'SENPAITACHI',
14      'Fams' => 'Senpaitachi'
15    );
16    
17    if (!isset($vals[$m[2]])) {
18      return $m[0];
19    }
20    
21    return "{$m[1]}{$vals[$m[2]]}{$m[3]}";
22  }
23  
24  // $text contents of a field
25  // $type name of the field
26  function word_filter($text, $type) {
27    if ($type !== 'com') {
28      return $text;
29    }
30    
31  //  $text = str_replace('Cuck', 'Kek', $text);
32  //  $text = str_replace('cuck', 'kek', $text);
33    $text = str_replace('CUCK', 'KEK', $text);
34    
35    $text = preg_replace_callback('/(\b)(sjw|sjws|smh|tbh|fams|fam)(\b)/i', 'word_filter_callback', $text);
36    
37    return $text;
38  }