【发布时间】：2015-01-31 05:33:31
【问题描述】：
我创建了一个 HTML 表单，允许我将图像上传到一个唯一命名的目录（即日期/时间/IP 地址的组合）。现在我正在尝试上传两张图片（最终是多张）。我复制了我的“文件 1”内容并将其唯一命名为“文件 2”。我很快将“2”附加到每个变量和帖子字段。这是我的上传表单 HTML：
<!DOCTYPE html>
<html>
<body>
<form action="icanhazuploads.php" method="post" enctype="multipart/form-data">
Select image(s) to upload: <br /><br />
<input type="file" name="fileToUpload" class="fileToUpload"><br /><br />
<input type="file" name="fileToUpload2" class="fileToUpload2"><br /><br />
<input type="submit" name="submit">
</form>
</body>
</html>
非常直接。两个上传字段和一个提交按钮。这是我的 PHP 处理器文件：
<?php
// Display Errors
ini_set('display_errors', 'On');
ini_set('html_errors', 0);
$ip = ip2long($_SERVER['REMOTE_ADDR']);
$datetime = date('YmdHis');
$target_dir = "uploads/" . $datetime . $ip . "/";
// Create the unique diretory
if (!file_exists($target_dir)) {
mkdir($target_dir, 0777, true);
}
// Start processing files
// File 1
echo "<br />1st file being added...<br />";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
echo "<br />Target File: " . $target_file. "<br />";
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
if($check !== false) {
echo "File is an image - " . $check["mime"] . ".<br />";
$uploadOk = 1;
} else {
echo "File is not an image.<br />";
$uploadOk = 0;
}
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Your file was not uploaded.<br />";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.<br />";
} else {
echo "There was an error uploading your file.<br />";
}
}
// File 2
if(isset($_POST["fileToUpload2"])) {
echo "<br />2nd file being added...<br />";
$target_file2 = $target_dir . basename($_FILES["fileToUpload2"]["name"]);
echo "<br />Target File: " . $target_file2. "<br />";
$uploadOk = 1;
$imageFileType = pathinfo($target_file2,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["fileToUpload2"]["tmp_name"]);
if($check !== false) {
echo "File is an image - " . $check["mime"] . ".<br />";
$uploadOk = 1;
} else {
echo "File is not an image.<br />";
$uploadOk = 0;
}
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Your file was not uploaded.<br />";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload2"]["tmp_name"], $target_file2)) {
echo "The file ". basename( $_FILES["fileToUpload2"]["name"]). " has been uploaded.<br />";
} else {
echo "There was an error uploading your file.<br />";
}
}
真的很神奇。我在浏览器中打开我的 HTML 表单，选择两个图像并点击提交。我可以使用 Firebug 或 Chrome 的检查器观看，并通过 POST 填充的两个图像字段查看它。但是，我的 PHP 文件将始终只看到一个。如果我只将图像放在表单的第二个字段中，它仍然就像我将它放在第一个字段中一样。错误日志中没有错误。知道为什么它拒绝查看多个文件吗？
我的 php.ini 设置：
; Maximum allowed size for uploaded files.
; http://php.net/upload-max-filesize
upload_max_filesize = 64M
; Maximum number of files that can be uploaded via a single request
max_file_uploads = 20
【问题讨论】：
-
文件有多大？
-
各种大小：
-
1) 文件大小的总和是否超过了最大上传大小？ 2）你检查过 php 信息以查看名为 max_file_uploads 的变量吗？
-
如果文件很大并且负责，您的 php 也可以有一个最大执行时间，它们将超过该时间限制并且脚本将停止执行