利用php和js实现页面数据刷新

  利用”XXXX.htm”和”XXX.php”两个文件来实现数据的刷新

  XXXX.htm

  <head>

  <script>
  // Refresh code
r_s = 0;
  timenow = 0;
  function calrs()
  {
  d = new Date();
  h= d.getHours(); m = d.getMinutes(); s = d.getSeconds();
  if( m < 10) m = ‘0’ + m;
  if( s < 10) s = ‘0’ + s;
  status = ‘ ‘ + h + “:” + m + “:” + s;
  r_s = 2000;
  }

  calrs();

  function reload_me()
  {
  c = document.getElementById(“reload1”);
  c.src = “”;
  c.src = “XXXXX.php?reload=1”;

  calrs();
  setTimeout(‘reload_me()’, r_s);
  }

  // Refresh code
  setTimeout(‘reload_me()’, r_s);
  </script>

  <script id=”reload1″></script>

  </head><small>
  <div id=”p_show></div>

  </small>

   

  XXXXX.php

  <?php
header(“Cache-Control: no-cache, must-revalidate”);
  echo “document.all.p_show.innerHTML= \”?<font color=red>”.rand(0,9).”</font>\””;
  ?>