$_FILES undefined index error

Question

i check all topics in stack about files and undefined index error but cant find answer anywhere. I have two files:

wpis.html

    <form action="wpis.php" method="POST">
    <input type="file" name="file">
    <input type="submit" name="Submit" value="Submit">
    </form>

wpis.php

if($_POST["Submit"])
{
echo $name = $_FILES['file']['name'];
$size = $_FILES['file']['size'];
$type = $_FILES['file']['type'];
$tmp_name = $_FILES['file']['tmp_name'];
}

And every time i'm getting this error : Undefined index: file in... I tried it on my computer using intellij plugin and on local host using wamp server with uploadfiles turn on. And ideas what may be the problem?

With enctype="multipart/form-data" added, your code works so this can not be reproduced. — Rasclatt
– Rasclatt, Commented Dec 5, 2015 at 23:54

Schlaus · Accepted Answer · 2015-12-05 23:18:22Z

2

Try setting the proper enctype in your form tag:

<form action="wpis.php" method="POST" enctype="multipart/form-data">

answered Dec 5, 2015 at 23:18

Schlaus

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Professor Abronsius · Accepted Answer · 2015-12-06 08:09:44Z

0

You could try ( this was geared towards multiple file uploads but should still work ) - but as @Schlaus said - the form must have the enctype="multipart/form-data" set when uploading files.

foreach( $_FILES['file']['name'] as $i => $name ) {
    if( !empty( $_FILES['file']['tmp_name'][$i] ) ) {
        $name = $_FILES['file']['name'][$i];
        $size = $_FILES['file']['size'][$i];
        $type = $_FILES['file']['type'][$i];
        $tmp  = $_FILES['file']['tmp_name'][$i];

        echo $name,$size,$type,$tmp;
    }
}

↓↓ Working example ↓↓

html
----

<!-- target is in the same directory as html running upload form -->
<form action="upload_target.php" method="post" enctype="multipart/form-data">
    <h1>Standard File Upload</h1>
    <input type="file" name="file[]">
    <input type="submit" value="Upload">
</form>



<?php
    /* upload_target.php */

    if( $_SERVER['REQUEST_METHOD']=='POST' ){

        $fieldname='file';

        define('NL',PHP_EOL);

        foreach( $_FILES[$fieldname]['name'] as $i => $name ) {
            if( !empty( $_FILES[$fieldname]['tmp_name'][$i] ) ) {

                $name = $_FILES[$fieldname]['name'][$i];
                $size = $_FILES[$fieldname]['size'][$i];
                $type = $_FILES[$fieldname]['type'][$i];
                $tmp  = $_FILES[$fieldname]['tmp_name'][$i];

                echo '<pre>',$name,NL,$size,NL,$type,NL,$tmp,'</pre>';
            }
        }   
    }
?>

output

6a00d8341d65de53ef01156f9b94a1970b-320wi.jpg
21714
image/jpeg
C:\Program Files (x86)\PHP\uploadtemp\php22AF.tmp

edited Dec 6, 2015 at 8:09

answered Dec 5, 2015 at 23:28

Professor Abronsius

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5 Comments

PassMan Over a year ago

Notice: Undefined index: files in C:\Users\Piotrek\Desktop\www\ProjektPHP\wpis.php on line 69 Warning: Invalid argument supplied for foreach() in C:\Users\Piotrek\Desktop\www\ProjektPHP\wpis.php on line 69 form : <form action="wpis.php" method="POST" enctype="multipart/form-data"> <input type="file" name="file"> <input type="submit" name="Submit" value="Submit"> </form>

Professor Abronsius Over a year ago

sorry, i had files rather than file

PassMan Over a year ago

still nothing, is this language is so dumb or what?

Professor Abronsius Over a year ago

one last suggestion before I go to bed, as the loop suggests an array try using file[] as the name of the input element - ie: <input type='file' name='file[]' />

PassMan Over a year ago

I changed name from file to file[] but errow with "Invalid argument supplied for foreach()" still appear, the second one with invalid index too. Any ideas what is the reason this problem?

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