中指定的类型
我在互联网上搜索了使用php脚本上传pdf文件的可能性。我尝试了这个网站上给出的所有建议,但都不起作用。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Uploaded</title>
</head>
<body>
<?php
//ini_set("upload_max_filesize", 10000000);
$uploaddir = './uploads/';
$uploadfile = $uploaddir . basename($_FILES['userfile']['name']);
//$allowed_ext = "pdf";
//$max_size = "9000000000000000000000";
define('MAX_FILE_SIZE', 0);
echo "<p>";
if((($_FILES["userfile"]["type"] == "image/gif")
|| ($_FILES["userfile"]["type"] == "image/jpeg")
|| ($_FILES["userfile"]["type"] == "image/png" )
|| ($_FILES["userfile"]["type"] == "image/jpg")
|| ($_FILES["userfile"]["type"] == "application/msword")
|| ($_FILES["userfile"]["type"] == "application/vnd.openxmlformats-officedocument.wordprocessingml.document")
|| ($_FILES["userfile"]["type"] == "text/plain")
|| ($_FILES["userfile"]["type"] == "application/wordperfect6.0")
|| ($_FILES["userfile"]["type"] == "application/pdf"))
&& ($_FILES["userfile"]["size"] < 10000000))
{
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
echo "File is valid, and was successfully uploaded.n";
} else {
echo "Upload failed";
}
}
echo "</p>";
echo '<pre>';
echo 'Here is some more debugging info:';
print_r($_FILES);
print "</pre>";
?>
</body>
</html>
尝试在else语句中打印文件的类型重新识别,而不是简单地打印"Upload failed"。
echo ($_FILES["userfile"]["type"]);
可能识别的tyope不属于if.
我已经在我目前正在进行的项目中完成了这项工作。这是我使用的上传代码。
require_once $_SERVER['DOCUMENT_ROOT'] . 'upload.php';
// Initialize file path
define ('UPLOAD_PATH', $_SERVER['DOCUMENT_ROOT'] . pdfFolder/");
// list of valid extensions, ex. array("jpeg", "xml", "bmp")
$allowedExtensions = array("pdf", "xls");
// max file size in bytes
$sizeLimit = 10 * 1024 * 1024;
$uploader = new qqFileUploader($allowedExtensions, $sizeLimit);
$result = $uploader->handleUpload(UPLOAD_PATH, false);
if(sizeof($result['error']) == 0){
// do what you want on success
}
else{
echo "Error - " . $result['error'];
}
这是上传的.php文件:
<?php
/**
* Handle file uploads via XMLHttpRequest
*/
class qqUploadedFileXhr {
/**
* Save the file to the specified path
* @return boolean TRUE on success
*/
function save($path) {
$input = fopen("php://input", "r");
$temp = tmpfile();
// $temp = fopen("php://temp", "wb");
$realSize = stream_copy_to_stream($input, $temp);
fclose($input);
if ($realSize != $this->getSize()){
return false;
}
$target = fopen($path, "w");
fseek($temp, 0, SEEK_SET);
stream_copy_to_stream($temp, $target);
fclose($target);
return true;
}
function getName() {
return $_GET['qqfile'];
}
function getSize() {
if (isset($_SERVER["CONTENT_LENGTH"])){
return (int)$_SERVER["CONTENT_LENGTH"];
} else {
throw new Exception('Getting content length is not supported.');
}
}
}
/**
* Handle file uploads via regular form post (uses the $_FILES array)
*/
class qqUploadedFileForm {
/**
* Save the file to the specified path
* @return boolean TRUE on success
*/
function save($path) {
if(!move_uploaded_file($_FILES['file']['tmp_name'], $path)){
return false;
}
return true;
}
function getName() {
return $_FILES['file']['name'];
}
function getSize() {
return $_FILES['file']['size'];
}
}
class qqFileUploader {
private $allowedExtensions = array();
private $sizeLimit = 10485760;
private $file;
function __construct(array $allowedExtensions = array(), $sizeLimit = 10485760){
$allowedExtensions = array_map("strtolower", $allowedExtensions);
$this->allowedExtensions = $allowedExtensions;
$this->sizeLimit = $sizeLimit;
$this->checkServerSettings();
if (isset($_GET['file'])) {
$this->file = new qqUploadedFileXhr();
} elseif (isset($_FILES['file'])) {
$this->file = new qqUploadedFileForm();
} else {
$this->file = false;
}
}
private function checkServerSettings(){
$postSize = $this->toBytes(ini_get('post_max_size'));
$uploadSize = $this->toBytes(ini_get('upload_max_filesize'));
if ($postSize < $this->sizeLimit || $uploadSize < $this->sizeLimit){
$size = max(1, $this->sizeLimit / 1024 / 1024) . 'M';
die("{'error':'increase post_max_size and upload_max_filesize to $size'}");
}
}
private function toBytes($str){
$val = trim($str);
$last = strtolower($str[strlen($str)-1]);
switch($last) {
case 'g': $val *= 1024;
case 'm': $val *= 1024;
case 'k': $val *= 1024;
}
return $val;
}
/**
* Returns array('success'=>true) or array('error'=>'error message')
*/
function handleUpload($uploadDirectory, $resample, $replaceOldFile = TRUE){
if (!is_writable($uploadDirectory)){
if (!mkdir($uploadDirectory, 0777, true)) {
die('Failed to create folders...');
return array('error' => "Server error. Upload directory isn't writable." . $uploadDirectory);
}
}
if (!$this->file){
return array('error' => 'No files were uploaded.');
}
$size = $this->file->getSize();
if ($size == 0) {
return array('error' => 'File is empty');
}
if ($size > $this->sizeLimit) {
return array('error' => 'File is too large');
}
$pathinfo = pathinfo($this->file->getName());
$filename = $pathinfo['filename'];
//$filename = md5(uniqid());
$ext = $pathinfo['extension'];
if($this->allowedExtensions && !in_array(strtolower($ext), $this->allowedExtensions)){
$these = implode(', ', $this->allowedExtensions);
return array('error' => 'File has an invalid extension, it should be one of '. $these . '.');
}
if(!$replaceOldFile){
/// don't overwrite previous files that were uploaded
while (file_exists($uploadDirectory . $filename . '.' . $ext)) {
$filename .= rand(10, 99);
}
}
if ($this->file->save($uploadDirectory . $filename . '.' . $ext)){
return true;
} else {
return array('error'=> 'Could not save uploaded file.' .
'The upload was cancelled, or server error encountered.');
}
}
}
希望这能有所帮助!