title: How to use PHP to connect to an Informix database?
body: <p>First, I would like to introduce the problem. </p>
  
  <p>I have a Informix database that is currently used by 300 staffs (average is around 100,000 records/query) that make this server work slowly. Current architecture is:</p>
  
  <p>Informix DB ⟷ Web Application</p>
  
  <p>Now I want to implement the new system by adding new MySQL server with the following architecture</p>
  
  <p>Informix DB ⟷ MySQL Server ⟷ Web Application</p>
  
  <p>In MySQL Server I would like to copy the database from Informix to MySQL server by using PHP + Cronjob.</p>
  
  <p><strong>The questions are:</strong></p>
  
  <ol>
  <li>Is there has any ODBC / JDBC driver (must be FREE!!) in LINUX for connecting to Informix?</li>
  <li>How to use it?</li>
  </ol>