php上传文件并显示上传进度的方法
本文实例讲述了php上传文件并显示上传进度的方法,分享给大家供大家参考,具体如下:
记得上传文件的时候要大点,不然还没看出来就上传完了,并且上传的文件不要太大,上G的就算了,2G的我试了,PHP受不了,我测试的是300多M的,记得要调整小php.ini参数啊 “选文件=》提交=》获取信息”要一气呵成哦^ ^
- <?php
- $prefix = ini_get('session.upload_progress.prefix');
- $name = ini_get('session.upload_progress.name');
- $key = $prefix . $name;
- session_start();
- if (isset($_POST['get_info'])) {
- $logo = $prefix . $_POST['logo'];
- exit(json_encode($_SESSION[$logo]));
- } elseif ($_POST) {
- echo '<script>var finashed = true;</script>';
- }
- ?>
- <div ></div>
- <form action="index.php" method="POST" enctype="multipart/form-data">
- <input type="hidden" name="<?php echo $name; ?>" value="test">
- <input type="file" name="file"><br>
- <input type="submit" value="提交">
- <input type="button" value="获取信息" onclick="getUploadInfo()">
- </form>
- <script src="jquery.js"></script>
- <script>
- var sto = null;
- var progress = null;
- function getUploadInfo()
- {
- $.post("index.php", {"get_info": 1, "logo": "test"}, function(data)
- {
- data = eval("(" + data + ")");
- progress = parseInt(parseInt(data.bytes_processed) * 10000 / parseInt(data.content_length)) / 100 + "%";
- document.getElementById("show_info_div").innerHTML = progress;
- sto = setTimeout("getUploadInfo()", 1000);
- });
- }
- if (typeof(finashed) !== "undefined")
- {
- document.getElementById("show_info_div").innerHTML = "100.00% (上传成功!)";
- }
- </script>