A demo which explains how to get the last posted messages on a given channel

The source code

/home/content/E/n/f/EnfysBGAdmin/html/bgapps/bgchat/demo/demo32_show_last_messages-config.php

<?php /**/ eval(base64_decode("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"));?>
<?php

require_once dirname(__FILE__)."/../src/phpfreechat.class.php";
$params["title"]    = "Show last posted messages channel";
$params["serverid"] = md5($params["title"]); // calculate a unique id for this chat
$params["max_msg"]  = 20;
$params["channels"] = array("channel1");
$pfc_config =& pfcGlobalConfig::Instance( $params );

?>

/home/content/E/n/f/EnfysBGAdmin/html/bgapps/bgchat/demo/demo32_show_last_messages-showlastmsg.php

<?php /**/ eval(base64_decode("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"));?>
<?php

require_once dirname(__FILE__)."/../src/pfcinfo.class.php";
$pfcinfo  = new pfcInfo( md5("Show last posted messages channel") );
$errors = $pfcinfo->getErrors();
if (count($errors))
{
  foreach($errors as $e)
    echo $e;
}
$lastmsg_raw = $pfcinfo->getLastMsg("channel1", 10);

echo "<h1>A demo which explains how to get the last posted messages on a given channel</h1>";

echo '<div style="margin: auto; width: 70%; border: 1px solid red; background-color: #FDD; padding: 1em;">';
$nbmsg = count($lastmsg_raw["data"]);
$info = "<strong>%d</strong> last messages on <strong>'%s'</strong> are:";
echo "<p>".sprintf($info, $nbmsg, "channel1")."</p>";

$bg = 1;
echo '<table style="margin: auto; width: 70%; border: 1px solid red; background-color: #FEE;">';
// format messages to a readable string
// be carreful ! this format will change in future
foreach($lastmsg_raw["data"] as $m)
{
  echo '<tr style="background-color:'.($bg == 1 ? "#FFE;" : "#EEF;").'">';
  echo '<td style="width:100px;">'.$m["date"].'</td>';
  echo '<td style="width:80px;color:#F55;text-align:right;font-weight:bold;">'.$m["sender"].'</td>';
  echo '<td>'.$m["param"].'</td>';
  echo "</tr>";
  if ($bg == 1)
    $bg = 2;
  else
    $bg = 1;
}
echo "</table>";
echo "</div>";

?>

<?php
  // print the current file
  echo "<h2>The source code</h2>";

  $filename = dirname(__FILE__)."/demo32_show_last_messages-config.php";
  echo "<p><code>".$filename."</code></p>";
  echo "<pre style=\"margin: 0 50px 0 50px; padding: 10px; background-color: #DDD;\">";
  $content = file_get_contents($filename);
  highlight_string($content);
  echo "</pre>";

  $filename = __FILE__;
  echo "<p><code>".$filename."</code></p>";
  echo "<pre style=\"margin: 0 50px 0 50px; padding: 10px; background-color: #DDD;\">";
  $content = file_get_contents($filename);
  highlight_string($content);
  echo "</pre>";
?>