php利用iframe实现无刷新文件上传功能的代码

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<div class="codetitle"><a style="CURSOR: pointer" data="19608" class="copybut" id="copybut19608" onclick="doCopy('code19608')"> 代码如下:

<div class="codebody" id="code19608">

  
  无刷新<a href="https://www.jb51.cc/tag/shangchuan/" target="_blank" class="keywords">上传</a><a href="https://www.jb51.cc/tag/wenjian/" target="_blank" class="keywords">文件</a>
  
  <script type="text/网页特效">
  function startUpload() {
  document.getElementById('processing').innerHTML = 'loding...';
  return true;
  }
  function stopUpload(rel){
  var msg;
  switch (rel) {
  case 0:
  msg = "上传成功";
  break;
  case 1:
  msg = "上传文件超过限制";
  break;
  case 2:
  msg = "只能上传图片文件";
  break;
  default:
  msg = "上传文件失败";
  }
  document.getElementById('processing').innerHTML = msg;
  }
  
  
  
  <div style="text-align:center">
  <div id="processing">

  <form action="upload.PHP教程" method="post" enctype="multipart/form-data" target="form-target" onsubmit="startUpload();">
  
  
  
  @H_301_50@
  <iframe style="width:0; height:0; border:0;" name="form-target">
  

  
  
  PHP代码
  <?PHP
  sleep(2);
  $fileTypes = array('jpg','png','gif','bmp');
  $result = null;
  $uploadDir = './upfiles';
  $maxSize = 1 * pow(2,20);
  if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['sub'])) {
  $myfile = $_FILES['myfile'];
  $myfileType = substr($myfile['name'],strrpos($myfile['name'],".") + 1);
  if ($myfile['size'] > $maxSize) {
  $result = 1;
  } else if (!in_array($myfileType,$fileTypes)) {
  $result = 2;
  } elseif (is_uploaded_file($myfile['tmp_name'])) {
  $toFile = $uploadDir . '/' . $myfile['name'];
  if (@move_uploaded_file($myfile['tmp_name'],$toFile)) {
  $result = 0;
  } else {
  $result = -1;
  }
  } else {
  $result = 1;
  }
  }
  ?>
  <script type="text/javascript">
  window.top.window.stopUpload(<?php echo $result; ?>);
  

原文链接:https://www.f2er.com/php/27598.html

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