【发布时间】:2015-05-19 15:30:33
【问题描述】:
我正在使用 PHP 构建一个 Web 应用程序。我正在其中创建一个文件上传部分,但我遇到了问题。
<form action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
上传.php:
<?php
$target_dir = "images/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$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"] . ".";
$uploadOk = 1;
} else {
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// 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.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
?>
它适用于图像。但是当我尝试检查如果我上传 mp4 文件会发生什么。它回显文件已存在,抱歉,只允许使用 JPG、JPEG、PNG 和 GIF 文件。抱歉,上传文件时出错。请指导我在哪里做错了,这样我就可以正常工作而不会出错。提前致谢。
【问题讨论】:
-
因为你的php文件有限制
-
@Amit Thakur 它还显示文件已经存在。是吗?
-
您确定您要上传的文件在目录中不存在吗?
-
是的,请复制此代码并检查您的本地主机。谢谢
-
经过一些修改后,working 对我来说很好===>
标签: php