PHP-文件上传,exif_imagetype()警告 [英] PHP - file upload, exif_imagetype() warning
问题描述
我正在尝试实现文件上传,并检查它是否是.png文件.
I was trying to implement a file upload and check if it's .png file.
即使我得到警告,也不会发生任何错误. 代码的输出如下:
Even though I get a warning, no errors occur. The output of the code is the following:
Caffpture.PNG无错误:)警告:exif_imagetype(Caffpture.PNG): 无法打开流:在该目录中没有此类文件或目录 第16行的/home/store/fhs36113/public_html/wp2/u4/upload.php错误 文件类型!
Caffpture.PNGNo Errors :) Warning: exif_imagetype(Caffpture.PNG): failed to open stream: No such file or directory in /home/store/fhs36113/public_html/wp2/u4/upload.php on line 16 wrong file type!
我希望你们能告诉我我在做错什么.
I hope you guys can tell me what I am doing wrong.
<?php
error_reporting(E_ALL);
ini_set("display_errors", true);
echo $_FILES["thefile"]["name"];
if ($_FILES['thefile']['error'] === UPLOAD_ERR_OK) {
echo "No Errors :)";
}else{
echo $_FILES['thefile']['error'];
}
if(exif_imagetype($_FILES['thefile']['name']) == IMAGETYPE_PNG)
{
$target_path = "uploads/";
$target_path = $target_path . basename( $_FILES['thefile']['name']);
if(move_uploaded_file($_FILES['thefile']['tmp_name'], $target_path)) {
echo "The file ". basename( $_FILES['thefile']['name']).
" has been uploaded";
} else{
echo "There was an error uploading the file, please try again! Remember: only jpeg, pnh and gif files are allowed!";
}
}
else
{
echo "wrong file type!";
}
?>
推荐答案
['name']
是在进程的CLIENT端使用的文件名.实际上,PHP上传文件存储在['tmp_name']
中,直到您将文件移动/复制到其他位置为止.因此,您正在访问的文件几乎可以保证在您的服务器上不存在.
['name']
is the filename as used on the CLIENT side of the process. A PHP upload is actually stored in ['tmp_name']
until you move/copy the file elsewhere. So you're accessing a file which almost guaranteed does not exist on your server.
尝试
if(exif_imagetype($_FILES['thefile']['tmp_name']) == IMAGETYPE_PNG)
相反.
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