Uploading text file in php

Upload text file in PHP

So either you change your code in getimagesize() or simply reverse the values of $uploadOk in the first part of the code to look like this: Solution 3: Your file would be like that so to be able to upload txt files, check for file type «txt». to upload only files plz use this code Solution 2: In your code You are checking the file type if it is an image or not by the function getimagesize() .

Upload text file in PHP

I would like to upload a .txt file and I found this code in w3schools. But this code only allows images to be uploaded and stored in a local drive. How do I change this into a .txt file upload format? Thanks for the response. 🙂

  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."; >> ?> 

Because you are only allowing JPG, PNG, JPEG images to upload. to upload only txt files plz use this code

You are checking the file type if it is an image or not by the function getimagesize() . If it is not an image you do $uploadOk = 0; . By doing so your text file will always give $uploadOk = 0; . Due to this accortding to your last part of the code:

// 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."; >> 

You will never be able to upload a text file. So either you change your code in getimagesize() or simply reverse the values of $uploadOk in the first part of the code to look like this:

// 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 = 0; >else < echo "File is not an image."; $uploadOk = 1; >> 

Your file would be like that so to be able to upload txt files, check for file type «txt».

 // 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 != "txt" ) < echo "Sorry, only txt 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."; >> ?> 

HTML DOM Input FileUpload files Property, Definition and Usage. The files property returns a FileList object, representing the file or files selected with the file upload button. Through the FileList object, you can get the the name, size and the contents of the files. This property is read-only.

Upload only txt files

how do check so ONLY .txt files are uploaded to the server and not other files in php.

You can test the filetype:

if ($_FILES['file']['type'] == 'text/plain') // this file is TXT 

Also, you can verify the mime-type of a file using the function mime_content_type.

This will return true if the file ends with .txt

If you want to check the actual file MIME type, try PHP’s finfo_file function. (See example #1 on that page. If the string returned isn’t «text/html,» then it’s not a text file.)

Edit: Bear in mind that the mime_content_type function has been depreciated. Use finfo_file instead.

If you just want to check that the extension is «.txt», and it doesn’t matter if the file is a real text file, then do:

$fileName = . $nameLength = strlen($fileName); if ($nameLength > 4 && substr($fileName, $nameLength - 4) == '.txt') < // Extension is ".txt". >else < // Other extension or no extension at all. >

How To Create a File Upload Button, W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

Txt PHP File upload txt extension?

I am doing a file upload in php. Is .txt a valid extension to upload filters? If so may I see an example?

EDIT: I’m sorry I’m not too clear. What I mean is I only want the user to be able to upload .txt files and that is all.

Anything’s valid until you make it invalid when it comes to uploading files. Play with this code and you’ll see what properties make PHP’s file processing tick:

upload_file.php :

 0) < echo "Error: " . $_FILES["file"]["error"] . "
"; > else < echo "Upload: " . $_FILES["file"]["name"] . "
"; echo "Type: " . $_FILES["file"]["type"] . "
"; echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb
"; echo "Stored in: " . $_FILES["file"]["tmp_name"]; > ?> 

I’m not really sure what you’re asking, so a bit clarification would be nice.

I don’t work with PHP (Python FTW), but if you want to make sure only text files get through, filter them:

if ($_FILE['file']['type'] == 'text/plain' && strrpos($_FILE['file']['name'], '.txt') === strlen($_FILE['file']['name']) - strlen('.txt')) < echo 'Your file is legit. Continue. ' >else

I’m not sure if the text/plain will cause false-negatives, so if it does, just remove it.

By default, unless you’re using a 3rd-party library of some sorts, any file can be uploaded. What you do with it, parsing it, is another story 🙂

Using the supplied filename from your form, you must extract the file extension. You then compare the file extension to a list of extensions (that you allow) and if it does not match any of them, do not process the file.

First extract the extension by

$ext = substr(strrchr($file_name,'.'),1); 

and compare the result using a case statement or (since you have 1 allowed extension) just if

if ($ext == 'txt') // upload the file 

Python — How to Upload File using FastAPI?, I am using FastAPI to upload a file according to the official documentation, as shown below: @app.post («/create_file/») async def create_file (file: UploadFile = File ()): file2store = await file.read () # some code to store the BytesIO (file2store) to the other database. When I send a request using Python …

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PHP File Upload

However, with ease comes danger, so always be careful when allowing file uploads!

Configure The «php.ini» File

First, ensure that PHP is configured to allow file uploads.

In your «php.ini» file, search for the file_uploads directive, and set it to On:

Create The HTML Form

Next, create an HTML form that allow users to choose the image file they want to upload:

Some rules to follow for the HTML form above:

• Make sure that the form uses method=»post»
• The form also needs the following attribute: enctype=»multipart/form-data». It specifies which content-type to use when submitting the form

Without the requirements above, the file upload will not work.

• The type=»file» attribute of the tag shows the input field as a file-select control, with a «Browse» button next to the input control

The form above sends data to a file called «upload.php», which we will create next.

Create The Upload File PHP Script

The «upload.php» file contains the code for uploading a file:

$target_dir = «uploads/»;
$target_file = $target_dir . basename($_FILES[«fileToUpload»][«name»]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($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;
>
>
?>

• $target_dir = «uploads/» — specifies the directory where the file is going to be placed
• $target_file specifies the path of the file to be uploaded
• $uploadOk=1 is not used yet (will be used later)
• $imageFileType holds the file extension of the file (in lower case)
• Next, check if the image file is an actual image or a fake image

Note: You will need to create a new directory called «uploads» in the directory where «upload.php» file resides. The uploaded files will be saved there.

Check if File Already Exists

Now we can add some restrictions.

First, we will check if the file already exists in the «uploads» folder. If it does, an error message is displayed, and $uploadOk is set to 0:

// Check if file already exists
if (file_exists($target_file)) echo «Sorry, file already exists.»;
$uploadOk = 0;
>

Limit File Size

The file input field in our HTML form above is named «fileToUpload».

Now, we want to check the size of the file. If the file is larger than 500KB, an error message is displayed, and $uploadOk is set to 0:

// Check file size
if ($_FILES[«fileToUpload»][«size»] > 500000) echo «Sorry, your file is too large.»;
$uploadOk = 0;
>

Limit File Type

The code below only allows users to upload JPG, JPEG, PNG, and GIF files. All other file types gives an error message before setting $uploadOk to 0:

Complete Upload File PHP Script

The complete «upload.php» file now looks like this:

$target_dir = «uploads/»;
$target_file = $target_dir . basename($_FILES[«fileToUpload»][«name»]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($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;
>

// 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 «. htmlspecialchars( basename( $_FILES[«fileToUpload»][«name»])). » has been uploaded.»;
> else echo «Sorry, there was an error uploading your file.»;
>
>
?>

Complete PHP Filesystem Reference

For a complete reference of filesystem functions, go to our complete PHP Filesystem Reference.

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