Echoing success after uploaded [closed] - php

Question

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 8 years ago.
Improve this question
I want to echo "success" on the same page the form is on if it uploaded correctly, but Im new to php so dont know how its done?
index.php
<form action="upload" method="POST">
<input name="field1" placeholder="First name" type="text" />
<input type="submit" name="submit" value="Submit">
upload.php
$content = "".$_POST["field1"];
$fp = fopen("upload/test.txt","wb");
fwrite($fp,$content);
fclose($fp);
I also need it to redirect back to same page index.php

Answer 1

You cannot do this when using a regular form post. When a form is posted the user navigates away from the current page and is given a new page by the server. The one they were looking at no longer exists, so you cannot inject a message.
If you want to perform the task as you describe you will need to use an AJAX-based file uploader.
See:https://stackoverflow.com/search?q=php+jquery+ajax+upload

Answer 2

If you need to echo on the same page and you don't want to use ajax there are 2 possible solution.
a) Use a GET parameter on upload script, and thread this on the index.php (As #Brad also said at comment)
upload.php
$content = "".$_POST["field1"];
$fp = fopen("upload/test.txt","wb");
fwrite($fp,$content);
fclose($fp);
header('Location: /index.php?m=success');
index.php
//Check for message parameter
if (isset($_GET['m']{0}) && $_GET['m'] === 'success')
echo 'Form uploaded successfully';
//Display the upload form
echo '<form action="upload" method="POST">' .
'<input name="field1" placeholder="First name" type="text" />' .
'<input type="submit" name="submit" value="Submit">';
b) Within the same script
index.php
//Check if form is submitted
if (isset($_POST['field1']))
{
$content = "".$_POST["field1"];
$fp = fopen("upload/test.txt","wb");
fwrite($fp,$content);
fclose($fp);
//Do anything else
}
//Display form. Use index.php as the action, instead of upload
echo '<form action="/index.php" method="POST">' .
'<input name="field1" placeholder="First name" type="text" />' .
'<input type="submit" name="submit" value="Submit">';
Update after comment:
When you open a file with the fopen function, you define 2 arguments. The first argument is the filename, and the second argument is the flags.
You need the 'a' (append) flag, instead of 'w' (write):
'a' Open for writing only; place the file pointer at the end of the
file. If the file does not exist, attempt to create it.
'w' Open for writing only; place the file pointer at the beginning
of the file and truncate the file to zero length. If the file does
not exist, attempt to create it.
Take a look here

Answer 3

$content = "".$_POST["field1"];
$fp = fopen("upload/test.txt","wb");
if (fwrite($fp,$content))
{
echo "Successful upload!";
} else {
echo "Not successful!";
};
fclose($fp);

Answer 4

You will need to use some javascript along with php to get what you are looking for.
ajax-file-upload-with-php-and-jquery
I haven't tried it, but at first glance looks like a great place to start.

Answer 5

Try the following code
if (! move_uploaded_file ( $_FILES ['attachment'] ['tmp_name'], UPLOAD_DIR )) {
//handle if file not uploaded
header("Location:index.php?m=fail");
}else{
header("Location:index.php?m=success");
}