A script that should decode JSON events.

event_parse.php

<?php
$handle = @fopen('./tmp/dump.log', "r");
  if ($handle)
  {
    // read till the end of the file
    while (!feof($handle))
    { 
    // read a line from the file
      $line = fgets($handle, 4096);
      // decode the json -> assoc. array
      $decoded_line = json_decode($line, true);
      ?>
	   	<p><strong>Recipient: <?php echo $decoded_line['email'];?></strong></p>
	   	<p>Date: <?php echo date('d M Y H:i:s A e', $decoded_line['timestamp']);?> </p>
	   	<p>Event: <?php echo $decoded_line['event'];?></p>
	   	<?php
   	}
  
  // close the file
  fclose($handle);
  }
?>