uploading image to db got an error in php

Question

All is going fine but got this error
Notice: Undefined index: image in C:\wamp\www\neos-final\update-image.php on line 21
Line 21 is $image=$_FILES['image']['name'];

What to do with this line :(

<form action="" method="post" enctype="multipart/form-data">
<input type="file" name="image" id="image" size="40">
<input name="" type="submit" value="upload" />

</form>
<?php 
$con = mysql_connect('localhost', '', ''); //Update hostname
mysql_select_db("test", $con); //Update database name

define ("MAX_SIZE","1000"); 
function getExtension($str)
{
     $i = strrpos($str,".");
     if (!$i) { return ""; }
     $l = strlen($str) - $i;
     $ext = substr($str,$i+1,$l);
     return $ext;
}

$errors=0;
$image=$_FILES['image']['name'];
if ($image) 
{
    $filename = stripslashes($_FILES['image']['name']);
    $extension = getExtension($filename);
    $extension = strtolower($extension);
    if ( ($extension != "jpg") && 
         ($extension != "jpeg") && 
         ($extension != "png") && 
         ($extension != "gif") && 
         ($extension != "JPG") && 
         ($extension != "JPEG") && 
         ($extension != "PNG") && 
         ($extension != "GIF") ) 
    {
        echo '<h3>Unknown extension!</h3>';
        $errors=1;
    }
    else
    {
        $size=filesize($_FILES['image']['tmp_name']);

        if ($size > MAX_SIZE*1024)
        {
            echo '<h4>You have exceeded the size limit!</h4>';
            $errors=1;
        }

        $image_name=time().'.'.$extension;
        $newname="images/".$image_name;

        $copied = copy($_FILES['image']['tmp_name'], $newname);
        if (!$copied) 
        {
            echo '<h3>Copy unsuccessfull!</h3>';
            $errors=1;
        }
        else echo '<h3>uploaded successfull!</h3>';

        mysql_query("insert into list (image) values('".$newname."')");
    }

    //Display image
    $rs=mysql_query("select * from list");
    if($rs)
        while($row=mysql_fetch_array($rs))
        {
         ?>
         <img width="150" src="<?php echo $row['image'];?>"><br>
         <?php 
        }
}
?>

Any idea?

You can Check DEveloper Tool to check what is being Posted on submit as it is because of undefined Veraible? — Muhammad Haseeb Khan
– Muhammad Haseeb Khan, Commented Apr 27, 2013 at 6:24
Why do you test $extension for uppercase strings when strtolower is applied? — Gumbo
– Gumbo, Commented Apr 27, 2013 at 6:30

Yogesh Suthar · Accepted Answer · 2013-04-27 06:19:52Z

1

This notice Notice: Undefined index: comes when any index of array variable is not defined.

use isset here

if(isset($_FILES['image']))
{
    $image=$_FILES['image']['name'];
    //your rest of code here
}

answered Apr 27, 2013 at 6:19

Yogesh Suthar

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3 Comments

Swati Kanojia Over a year ago

Sir one more thing is...when I upload any image here it creates an id automatically say id = 0 in database and upload image..whereas I want the existing image to be replace with the new one?...can u pls check my code for this

Mahesh.D Over a year ago

@SwatiKanojia: If your updating the existing image then you need to pass id of the existing image as hidden value with form,by checking id you can update the image instead of creating new record.

Swati Kanojia Over a year ago

Is there any simple code to do that...all these code sucks my mind :( dont knw what to do

Hkachhia · Accepted Answer · 2013-04-27 06:21:35Z

0

Use php isset()

if(isset($_FILES['image']))
{
  // your code 
}

answered Apr 27, 2013 at 6:21

Hkachhia

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