title: fgetcsv() notice: "escape must be a single character" with 'µ'
body: <p>When I use <code>fgetcsv()</code> with <code>escape</code> = <code>µ</code> like this</p>
  
  <pre><code>$filename = 'test.csv';
  $handle = fopen($filename, 'r');
  $a = fgetcsv($handle, 0, ';', '"', 'µ');
  </code></pre>
  
  <p>php outputs a notice</p>
  
  <blockquote>
    <p>Notice: fgetcsv() [function.fgetcsv]:
    escape must be a single character in myPhpFile.php
    on line 23</p>
  </blockquote>
  
  <p>Why?</p>