PHP upload file web form

Question

i'm trying to create a form that lets the visitor upload image files. I have been using the code below but keep receiving the "not set" error as if $_FILES['image'] isn't picking up the image file.

Can anyone see any errors here?

Form code:

<h1>Contact form test</h1>
<form action="php/form.php" method="post">
  First name:<br>
  <input type="text" name="firstname" required><br>
  Last name:<br>
  <input type="text" name="lastname" required><br>
  <p>
      <input type="file" name="image" id="image" enctype="multipart/form-data"><br>
  </p>
  <input type="submit" value="Submit"> 
</form>

php code:

// Set variables
$firstname = secure($_POST['firstname']);
$lastname = secure($_POST['lastname']);

// Form Security
function secure($data){
    $data = trim($data);
    $data = stripslashes($data);
    $data = htmlspecialchars($data);
    return $data;
}
// File upload
if(isset($_FILES['image'])){
    $errors= array();
    $file_name = $_FILES['image']['name'];
    $file_size = $_FILES['image']['size'];
    $file_tmp = $_FILES['image']['tmp_name'];
    $file_type = $_FILES['image']['type'];
    $file_ext=strtolower(end(explode('.',$_FILES['image']['name'])));       
    $extensions= array("jpeg","jpg","png");          
    if(in_array($file_ext,$extensions)=== false){
         $errors[]="extension not allowed, please choose a JPEG or PNG file.";
      }          
      if($file_size > 2097152){
         $errors[]='File size must be exactly 2 MB';
      }          
      if(empty($errors)==true){
         move_uploaded_file($file_tmp,"images/".$file_name);
         echo "Success";
      }else{
         print_r($errors);
      }
}else{
    echo "not set";
}

Possible duplicate : http://stackoverflow.com/questions/9207379/simple-file-upload-script — CD001, Aug 22 '16 at 10:29

score 3 · Answer 1 · answered Aug 22 '16 at 10:17

3

put enctype="multipart/form-data" in form tag

answered Aug 22 '16 at 10:17

Balraj Allam

611
6
24

Dave · Accepted Answer · 2016-08-22T10:25:45.280

use enctype="multipart/form-data" in form tag

<form action="php/form.php" method="post" enctype="multipart/form-data">
  First name:<br>
  <input type="text" name="firstname" required><br>
  Last name:<br>
  <input type="text" name="lastname" required><br>

    <p>
    <input type="file" name="image" id="image" enctype="multipart/form-data">
    <br>
  </p>
  <input type="submit" value="Submit">
</form>

Reference : http://php.net/manual/en/features.file-upload.post-method.php

score 1 · Answer 3 · answered Aug 22 '16 at 10:23

Just adds a multipart attribute for form tag, which is necessary if you would like to use the form to upload files with. The enctype attribute specifies how the form-data should be encoded when submitting it to the server.

<form action="demo_post_enctype.asp" method="post" enctype="multipart/form-data">
//you code here
</form>

Also ,the enctype attribute can be used only if method="post".

PHP upload file web form

3 Answers3