Php gives undefined index error while file upload

Question

I searched internet and I could not find a solution for the problem. I have a form and when I submit only text fields there is no problem. But when I add file input and submit the form I get undefined index error.

HTML CODE

    <form method="post" action="add.php" enctype="multipart/form-data">
        <input type="hidden" name="MAX_FILE_SIZE" value="10485760">
        <input type="text" name="topic" style="width:300px;" value="cars" />        
        <input type="file" name="file1" id="file1" />
        <input type="submit" name="submit" value="Add"/>
    </form>

PHP CODE

if(isset($_POST['submit']))
{
    // Form
}
else echo'NOOO';

This code always give NOOO when uploading file. I have controlled php.ini and upload is on.

are you adding the if(isset($_POST['submit'])) code to add.php? Because, your form is submitted there. — Pupil
– Pupil, Commented Sep 29, 2015 at 12:49
possible duplicate of How to fix 'Notice: Undefined index:' in PHP form action? — DDphp
– DDphp, Commented Sep 29, 2015 at 12:51
you need to use $_FILES to obtain any file requests. However, the way you have it set up. It should work. What problems are you having exactly? — CodeGodie
– CodeGodie, Commented Sep 29, 2015 at 12:51

M41DZ3N · Accepted Answer · 2015-09-29 12:53:56Z

0

Not every Browser sends the Submit button Value

you should check for your real Input values

if(isset($_POST['topic']))
{
    // Form
}
else echo'NOOO';

if you want to check if your File is attched

use

$_FILE['file1']

instead of $_POST

answered Sep 29, 2015 at 12:53

M41DZ3N

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6 Comments

CodeGodie Over a year ago

You should point out the browsers that do not send the "submit" value so that we can test

onsmile Over a year ago

My browser is Microsoft Edge. It give same error with Chrome. if(isset($_POST['submit'])) worked when using only text field but not working after added file field.

CodeGodie Over a year ago

What do you mean by "...but not working after added file field." ?

CodeGodie Over a year ago

Is that same error happening when you use a different browser?

CodeGodie Over a year ago

Edit your initial question and include all your code because its obviously something else youre not telling or showing us.

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