title: Sort a CSV file by last name with PHP
body: <p>How would I sort the following CSV file using PHP?  I would like to sort by last name.  Do I use regex somehow to get the first letter in the last name?  Any help is appreciated</p>
  
  <p>Here is an excerpt of my CSV file - with a ";" delimiter between names and addresses</p>
  
  <pre><code>John C. Buckley, M.D.;123 Main Street, Bethesda MD 20816
  Steven P. Wood;345 Elm Street, Rockville, MD 20808
  Richard E. Barr-Fernandez;234 Pine Street, Takoma Park MD 20820
  Charles Andrew Powell; 678 Oak Street, Gaithersburg MD 20800
  Mark David Horowitz, III; 987 Wall Street, Silver Spring MD 20856
  </code></pre>