我上传了一个php文件，表单目标是一个iframe。
它上传的文件小于2mb罚款。但任何更大的东西都不会上传。我在代码中看不出这背后的任何原因。
<div id="upload_wrapper">
<img src="../images/logo.png" alt="logo5" width="" height="" style="padding:0px;" />
<h3>Profile picture upload</h3>
<form id="upload" name="upload" enctype="multipart/form-data" method="post" action="index.php" target="upload_target">
<input name="folder" type="hidden" value="<?php echo $folder ?>" />
<input name="filename" type="hidden" value="<?php echo $filename ?>" />
<input name="uploaded_file" type="file" size="5120" id="uploaded_file" />
<input id="sent" name="sent" type="submit" value="Upload" />
</form>
</div>
<div id="loading" style="background:url(ajax-loader.gif) no-repeat left; height:50px; width:370px; display:none;">
<p style="margin-left:40px; padding-top:15px;">Uploading File... Please wait</p>
</div>
<div id="image_wrapper" style="display:none;"><p id="preview"></p></div>
<iframe id="upload_target" name="upload_target" style="width:10px; height:10px; display:none"></iframe>
</div>
这里是php上传代码
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$targetFolder = $_POST['folder'] . "/";
$filename2 = $_POST['filename'];
if (!is_dir($targetFolder))
{
mkdir($targetFolder, 0777);
}
$tempFile = $_FILES['uploaded_file']['tmp_name'];
$targetPath = dirname(__FILE__) . '/' . $targetFolder;
$targetFile = rtrim($targetPath,'/') . '/' . $_FILES['uploaded_file']['name'];
// Validate the file type
$fileTypes = array('jpg'); // File extensions
$fileParts = pathinfo($_FILES['uploaded_file']['name']);
if (in_array($fileParts['extension'],$fileTypes))
{
$uploadfile = $targetFolder. basename($filename2 .".".$fileParts['extension']);
move_uploaded_file($tempFile,$uploadfile);
$fileName = $uploadfile;
}
echo "<div id='filename'>$fileName</div>";
}
也许更改php服务器的配置会有所帮助（例如10MB）：
ini_set('upload_max_filesize', '10M');
确保php.ini配置支持大文件。upload_max_filesize和post_max_size也可以在处理上载过程之前使用ini_set临时更改配置。
试试这个可能会奏效，把它放在代码中，然后试试
define ("MAX_SIZE","1000"); // put your max size value
$size=filesize($_FILES['uploaded_file']['tmp_name']);
//compare the size with the maxim size we defined and print error if bigger
if ($size > MAX_SIZE*1024)
{
echo '<h1>You have exceeded the size limit!</h1>';
$errors=1;
}
否则，您必须在文档root/php/php.ini中的php.ini中进行编辑
您可以更改服务器设置。查找php.ini文件并搜索"upload_max_filesize"