Error uploading image using php

Question

I am trying to upload image as shown here w3schools But it always shows the error

Undefined index: file

This is the code

HTML

<form action="upload.php" method="post"  enctype="multipart/form-data">
    <!-- Upload image -->
    <input type="file" name="file" id="file">
    <input type="submit" value="Upload Image" name="submit">
</form>

PHP

<?php
    if(!isset($_POST["submit"])){
        die('Error');
    }
    $target_dir = "uploads/";
    $target_file = $target_dir . basename($_FILES["file"]["name"]);
    $uploadOk = 1;
    $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
    if(isset($_POST["submit"])) {
        $check = getimagesize($_FILES["file"]["tmp_name"]);
        if($check !== false) {
        echo "File is an image - " . $check["mime"] . ".";
        $uploadOk = 1;
        } else {
        echo "File is not an image.";
        $uploadOk = 0;
        }
    }
    if (file_exists($target_file)) {
        echo "Sorry, file already exists.";
        $uploadOk = 0;
    }
    if ($_FILES["file"]["size"] > 500000) {
        echo "Sorry, your file is too large.";
        $uploadOk = 0;
    }
    if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType !=   "jpeg"
    && $imageFileType != "gif" ) {
        echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
        $uploadOk = 0;
    }
    if ($uploadOk == 0) {
        echo "Sorry, your file was not uploaded.";
    } else {
        if (move_uploaded_file($_FILES["file"]["tmp_name"], $target_file)) {
            echo "The file ". basename( $_FILES["file"]["name"]). " has been     uploaded.";
        } else {
            echo "Sorry, there was an error uploading your file.";
        }
    }
?>

try to increase image size in php.ini and check also image_upload should be on — Alive to die - Anant, Apr 13 '15 at 07:08
@sanojlawrence The first image i uploaded was more but as aab suggested i reduced and it worked — Akshay, Apr 13 '15 at 07:20

score 6 · Accepted Answer · edited May 23 '17 at 10:32

If you are using WAMP or XAMPP they have file upload limit set.If the file size is greater than 2mb the upload will not work.Try uploading images of size less than 2mb and see if it works. To change file upload limit open your php.ini file and modify this value

upload_max_filesize=2M

Replace 2M with limit you wish to provide eg 6M or 8M

The following link explains about changing the file upload limit PHP change the maximum upload file size

score 1 · Answer 2 · answered Apr 13 '15 at 07:08

You can use upload.php like this, It will work.

<?php
$file_exts = array("jpg", "bmp", "jpeg", "gif", "png");
$upload_exts = end(explode(".", $_FILES["file"]["name"]));
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/png")
|| ($_FILES["file"]["type"] == "image/pjpeg"))
&& ($_FILES["file"]["size"] < 2000000)
&& in_array($upload_exts, $file_exts))
{
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Type: " . $_FILES["file"]["type"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";
// Enter your path to upload file here
if (file_exists("c:\wamp\www\upload/newupload/" .
$_FILES["file"]["name"]))
{
echo "<div class='error'>"."(".$_FILES["file"]["name"].")".
" already exists. "."</div>";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"c:\wamp\www\upload/newupload/" . $_FILES["file"]["name"]);
echo "<div class='sucess'>"."Stored in: " .
"c:\wamp\www\upload/newupload/" . $_FILES["file"]["name"]."</div>";
}
}
}
else
{
echo "<div class='error'>Invalid file</div>";
}
?>

score 1 · Answer 3 · answered Apr 13 '15 at 07:11

Use this code according to your script


if($_FILES["image1"]["name"]!='')

         {

            $image_name1 = $_FILES["image1"]["name"];
            $source_image1=$_FILES["image1"]["tmp_name"];
        }

            $filename1= time()."_".$image_name1;
            $folderpath1 = ROOT."images/uploads/".$filename1;
                move_uploaded_file($source_image1,$folderpath1);
            if(!move_uploaded_file($source_image1,$folderpath1))
            {
                $err.="There is problem to upload the Image please try again";
            }

Amrita Gupta · Answer 4 · 2015-04-13T07:29:48.873

if(isset($_POST['submit'])){


    function PhotoUpload($imagename,$conn)
    {                    

        if(isset($imagename))
        {
            $filename = $_FILES[$imagename]['name'];
            $filesize = $_FILES[$imagename]['size'];
            $filetype = $_FILES[$imagename]['type'];
            $path = "photo/".$emp_id.".jpg";
            $allowedExtensions = array("tif","png","jpeg","jpg","gif"); 
            move_uploaded_file($_FILES[$imagename]["tmp_name"],"$path");

            $upd1="UPDATE `table` SET `photo`='$path'";
             $sql_upd = mysql_query($upd1);
             $msg='Record Updated Successfully';

        }
    }
    if($_FILES["file"]["error"] == 0)
    {
        PhotoUpload('file',$conn); 
    }

}

Error uploading image using php

4 Answers4