title: Replace multiple words with Str_Replace
body: <p>I want to replace multiple synonyms with one specific word.</p>
  
  <pre><code>&lt;?p
  
  $a = array(
  'truck',
  'vehicle',
  'seddan',
  'coupe',
  'Toyota',
  );
  $b = array(
  'car',
  'car',
  'car',
  'car',
  'Lexus',
  );
  $str = '
  
  Honda is a truck. 
  Toyota is a vehicle. 
  Nissan is a sedan. 
  Scion is a coupe.
  
  ';
  echo str_replace($a,$b,$str);
  ?&gt;
  </code></pre>
  
  <p>RESULT: Honda is a car. Lexus is a car. Nissan is a car. Scion is a car.</p>
  
  <p>Can someone show me a clean way of replacing "vehicle, truck, coupe, sedan" with the word "car" instead of me replacing all 4 of them individually. Thank you.</p>