title: Detect chinese (multibyte) character in the string
body: <pre><code>$str = "This is a string containing 中文 characters. Some more characters - 中华人民共和国 ";
  </code></pre>
  
  <p>How do I detect chinese characters from this string and print the part which starts with the first character and ends with "-"? (it would be "中文 characters. Some more characters -").</p>
  
  <p>Thank you!</p>