Connect to SQLITE using PHP from Another Host

how to make PHP to take solite database from other computer/Host ?

 <?php   class MyDB extends SQLite3   {`enter code here`
  function __construct()
  {
     $this->open('datab.sqlite'); 
  }   }

$db = new MyDB(); if(!$db){

  echo $db->lastErrorMsg();   } else {
  //echo "Opened database successfully\n";   }

?>