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 id="show_info_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>
希望本文所述对大家的php程序设计有所帮助。
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