sslinfo/index.php

<?php

require("settings.php");

foreach ($sites as $s) {
 $g = stream_context_create (array("ssl" => array("capture_peer_cert" => true)));
 $r = stream_socket_client("ssl://" . $s . ":443", $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $g);
 $p = stream_context_get_params($r);
 $c = openssl_x509_parse($p["options"]["ssl"]["peer_certificate"]);
        
 $out = $s . " - " . date("Y-m-d H:i:s",$c["validTo_time_t"]);
 if ($c["validTo_time_t"] < strtotime("+1 week")) {
  print("<font color=\"red\"><b>" . $out . "</b></font><br>");
 } else if (isset($_GET["debug"])) {
  print($out . "<br>");
 };             
};