Windows XP
PHP 4.4.2
Apache 2.2
Register_Globals = Off

Safe_Mode = On

Hi All,

I am having a problem getting a file browse input field to be recognized on the next page. Let me show you...

page1.php Contains a web form with a file input to attach a file using a browse button.

<form method='POST' action='page2.php' enctype='multipart/form-data'>
<input name='uploadFile1' type='file' id=uploadFile1'>

page2.php contains a validator to check the input and perform an action based on whether or not the browse input field has been populated.

// IF THE POST CONTAINS A FILE UPLOAD, PROCESS SECTION 1 IF NOT PROCESS SECTION 2.

if (isset($_POST['uploadFile1'])) {
echo "File is attached so print this.";
}

if (!isset($_POST['uploadFile1'])) {
echo "File is NOT attached so print this.";
}

If the user uses the browse button on the form page to populate the field with a file path to a file on his pc, then I expect to see the "File is attached message". However, regardless of whether someone does or does not browse a file, the message is always that they have NOT browsed a file and the variable "uploadFile1" is effectively left unpopulated.

OUTPUT
File is NOT attached so print this.

Conversley, I thought I might be able to use the FILES variable instead of POST, but I get the exact opposite, that the browse field is populated all the time whether or not someone has browsed a file or left the browse field blank.

if (isset($_FILES['uploadFile1'])) {
echo "File is attached so print this.";
}

if (!isset($_FILES['uploadFile1'])) {

OUTPUT
File is attached so print this.

So, I am missing something. Can someone give me some direction so that I can simply identify (with register_globals = Off) whether or not an input field (input type=file) has been populated or left blank? Is this even possible? What am I missing?

Thanks.

    you should look at $_FILES['uploadFile1']['error'] in your form processing code. the error codes are explained here

      devinemke wrote:

      you should look at $_FILES['uploadFile1']['error'] in your form processing code. the error codes are explained here

      Thanks. I'll take a look.

        It told me the file was not uploaded. That's like telling a blind man he can't see. 🙂

        Error: 4

          Use the $_FILES superglobal array, but check it with [man]empty[/man] instead of isset. The error codes should still be useful to check if the client has really uploaded a file, methinks.

            Thanks. I was finally able to achieve what I needed. This is what I did... went back to basics...

            $file_name = $_FILES['uploadFile0']['name'];

            // ...............................................................................................
            // CHECK FOR ATTACHMENT
            // ...............................................................................................
            if($file_name == ""){
            print "No Attachment";
            }

            if($file_name != ""){
            print "YES, Attachment";
            }

            I will try your "empty" suggestion, laserlight. But for now, I consider this thread resolved. Thanks again to everyone who replied.

              Now, if I can find the button to mark this thread resolved........ anyone?

                wscreate wrote:

                Now, if I can find the button to mark this thread resolved........ anyone?

                Found it... duh.

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