PHP Undefined index error $_FILES?
Solution 1
first: try to strict programming
error_reporting(E_ALL | E_STRICT);
also you must use isset for check is index for array available or not
if (isset($_POST['submitbtn']) && isset($_FILES['avatar'])) {
// ...
}
also check php configuraion
file_uploads "1"
upload_max_filesize "2M"
post_max_size "8M"
max_file_uploads 20
post max size must be larger than upload max file size.
also as guys said check form enctype
Solution 2
For uploading files, you must use the enctype in form tag.
<form enctype="multipart/form-data" action='register.php' method='post'>
Solution 3
You should add form attribute enctype="multipart/form-data"
to upload files
Solution 4
this is a 1 year ago Post but you may still interested .. Check this option in PHP.ini : enable_post_data_reading=off It should be : on otherwise the $_FILES will be empty forever Whether PHP will read the POST data This option is enabled by default. Most likely, you won't want to disable this option globally. It causes $_POST and $_FILES to always be empty.
mais-oui
Updated on July 20, 2022Comments
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mais-oui almost 2 years
I am new to PHP and am following a tutorial on YouTube. I have everything working in this file, except for the file uploading, any help would be appreciated. Here is the error i am getting:
*NOTE: I have looked for this many times, but could not find undefined index error relevant to $_FILES...
Notice: Undefined index: avatar in /Applications/xxx on line 95
Notice: Undefined index: avatar in /Applications/xxx on line 96
Notice: Undefined index: avatar in /Applications/xxx on line 97
Notice: Undefined index: avatar in /Applications/xxx on line 98
Sorry for this if it is a simple fix...
<?php $title = "Register";?> <?php require ("styles/top.php") ; ?> <?php //de-bugging remove this after script works as desired> error_reporting(E_ALL); ini_set("display_errors", 1); //end de-bugging// $form = "<form action='register.php' method='post'> <table cellspacing='5px'> <tr> <td></td> <td><font color='red'>*</font> are required fields.</td> </tr> <tr> <td>First Name:</td> <td><input type='text' name='firstname' class='textbox'><font color='red'> *</font></td> </tr> <tr> <td>Last Name:</td> <td><input type='text' name='lastname' class='textbox'><font color='red'> *</font></td> </tr> <tr> <td>Username:</td> <td><input type='text' name='username' class='textbox'><font color='red'> *</font></td> </tr> <tr> <td>Email:</td> <td><input type='text' name='email' class='textbox'><font color='red'> *</font></td> </tr> <tr> <td>Password:</td> <td><input type='password' name='password' class='textbox'><font color='red'> *</font></td> </tr> <tr> <td>Confirm Password:</td> <td><input type='password' name='repassword' class='textbox'><font color='red'> *</font></td> </tr> <tr> <td>Profile Picture:</td> <td><input name='avatar' type='file' ></td> </tr> <tr> <td>Profile Message:</td> <td><textarea name='bio' cols='35' rows='5' class='textbox'></textarea></td> </tr> <tr> <td></td> <td><input type='submit' name='submitbtn' value='Submit' class='button'></td> </tr> </table> </form>"; if ($_POST['submitbtn']) { $firstname = strip_tags($_POST['firstname']); $lastname = strip_tags($_POST['lastname']); $username = strip_tags($_POST['username']); $email = strip_tags($_POST['email']); $class = ($_POST['class']); $password = strip_tags($_POST['password']); $repassword = strip_tags($_POST['repassword']); $bio = strip_tags($_POST['bio']); //AVATAR UPLOAD $name = $_FILES['avatar'] ['name']; $type = $_FILES['avatar'] ['type']; $size = $_FILES['avatar'] ['size']; $tmpname = $_FILES['avatar'] ['tmpname']; $ext = substr($name, strrpos($name, '.')); if ($firstname && $lastname && $username && $email && $password && $repassword) { if ($password == $repassword) { if (strstr($email, "@") && strstr($email, ".") && strlen($email) >= 6) { require("scripts/connect.php"); $query = mysql_query("SELECT * FROM users WHERE username ='$username'"); $numrows = mysql_num_rows($query); if ($numrows == 0) { $query = mysql_query("SELECT * FROM users WHERE email ='$email'"); $numrows = mysql_num_rows($query); if ($numrows == 0) { $pass = (md5(md5($password))); $date = date("F j, Y"); if($name){ move_uploaded_file($tmpname, "avatars/$username.$ext"); $avatar = "$username.$ext"; } else $avatar = "default_avatar.png"; $code = substr(md5(rand(111111111111, 99999999999999999)), 2, 25); mysql_query("INSERT INTO users VALUES ('', '$firstname', '$lastname', '$username', '$email', '$pass', '$avatar', '$bio', '', '', '$code', '', '$date')"); $webmaster = "xxxx"; $subject = "xxxx"; $headers = "From:xxx<$webmaster>"; $message = "xxx"; mail($email, $subject, $message, $headers); echo "xxx"; } else echo "That email is already taken. $form"; } else echo "That username is already taken. $form"; } else echo "You did not enter a valid email. $form"; } else echo "Your passwords did not match. $form"; } else echo "You did not fill in all of the required fields. $form"; } else echo "$form"; ?> </div> <?php require ("styles/bottom.php") ; ?>