title: Checking if a string contains a specific word - PHP
body: <p>I need to only output true if the sentence contain a specific word.</p>
  
  <p>I know I can use the code below to check if a string contains a word and it will output true.</p>
  
  <pre><code>$a = 'How are you?';    
  
  if (strpos($a,'are') !== false) {
  echo 'true';
  }
  else{
  echo 'false';
  </code></pre>
  
  <p>But how would I get it to output false if $a  was "Why do you care?"</p>