title: Special characters (i.e. '...' character) causing query to fail
body: <p>I am not sure what character set this character '...' belongs to. However, in some cases, users copy and paste data in to the note field of an application I am working on. The note contents contains this special characters and causes the insert / update query to fail.</p>
  
  <p>I was wondering if there is a string function to detect and remove this special character (along with other unwanted characters from this character set), while maintaining all other special characters ?</p>
  
  <p>Example:</p>
  
  <pre><code>$query = 'INSERT INTO notes (note) VALUES ("… hello … world!")';
  mysqli_query($conn, $query); //nothing is inserted
  </code></pre>
  
  <p>Thanks in advance!</p>