Object Not Found error for simple php script

问题

Every time I hit the submit button to process this code in my webpage it goes to the Object Not Found (404 error) page. It has happened in a few of my scripts and i don't know the source of the problem of whether its my localhost(Xampp) or my code.

if (isset($_POST['submit']))
{
    require "dbc.php"; //Connection to database
    //the textfield input to be saved
    $name = mysql_real_escape_string($_POST['assign_id']);
    $id   = mysql_real_escape_string($_POST['id']);

    //the mysql query to process the textfield input
    $query = mysql_query("UPDATE users SET docID='$assign_id' WHERE id='$id'");
//normal statement to let the user know that the changes have been made.    
    echo "Doctor ID Successfully Assigned for Patient ID : $name ";
    echo "<p>Refresh page to view changes.</p>";
}   

回答1:

You are using $assign_id in your query, where you get the $_POST['assign_id'] earlier and store it to $name.

Try changing $assign_id in your query to $name.
or
Try changing you variable $name to $assign_id.

EDIT

Another thing to check, is the file dbc.php in the same directory as this file?

EDIT 2

Post the contents of your apache2/error.log file. That will show what file was not found.

EDIT 3

Post the code for you <form> opening tag. What is your action set to? Does the action file actually exist?

回答2:

404 is an HTTP error code, it has nothing to do (directly) with PHP.

It means that the server is not able to locate a file that matches with your request.

Essentially, it looks like you're requesting http://yourdomain.com/path/to/script.php when you submit your form, but the /path/to/script.php file doesn't exist.

回答3:

When pressing submit on a form, the server tries to find the 'action' of the form. You should check that this action contains a valid filename in a correct path.

回答4:

When pressing submit on a form, the server tries to find the 'action' of the form. You should check that this action contains a valid filename in a correct path.Always it shows error..

来源：https://stackoverflow.com/questions/15978782/object-not-found-error-for-simple-php-script