title: "foo" and "bar" used commonly in php.net and other sites
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/53609/what-does-foo-really-mean">What does &#39;foo&#39; really mean?</a>  </p>
  </blockquote>
  
  
  
  <p>It is a very common thing to encounter in <a href="http://php.net/" rel="nofollow noreferrer">php.net</a> statements like <code>$foo="bar"</code> or other such statements. Is there any significance of <code>foo</code> and <code>bar</code> or are they just conventions evolved as a matter of time?</p>