php上传文件并显示上传进度的方法_php技巧

WBOY
Release: 2016-05-16 20:19:30
Original
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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^ ^

<&#63;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>';
}
&#63;>
<div id="show_info_div"></div>
<form action="index.php" method="POST" enctype="multipart/form-data">
  <input type="hidden" name="<&#63;php echo $name; &#63;>" 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>
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希望本文所述对大家的php程序设计有所帮助。

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