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Hello everyone, I’m all new to the PHP language and I have encountered some issues while editing an PHP upload script I’d like to use on a site.
The purpose is to upload a picture, have it renamed and then placed in it’s correct sub-folder. Because the picture is supposed to be changed regularly I also would like it to delete old pictures with the specific name in the targeted sub-folder before uploading new ones.
This is the upload script that’s requested when i press “upload” on my site:
[code=php]
<?php
$myFile = “outlet/1/outlet1.jpg”;
unlink($myFile);
?>
<?php
// first let’s set some variables
// make a note of the current working directory, relative to root.
$directory_self = str_replace(basename($_SERVER[‘PHP_SELF’]), ”, $_SERVER[‘PHP_SELF’]);
// make a note of the directory that will recieve the uploaded file
$uploadsDirectory = $_SERVER[‘DOCUMENT_ROOT’] . $directory_self . ‘outlet/1/’;
// make a note of the location of the upload form in case we need it
$uploadForm = ‘http://’ . $_SERVER[‘HTTP_HOST’] . $directory_self . ‘uploadformfirst.php’;
// make a note of the location of the success page
$uploadSuccess = ‘http://’ . $_SERVER[‘HTTP_HOST’] . $directory_self . ‘upload.success.php’;
// fieldname used within the file <input> of the HTML form
$fieldname = ‘file’;
// Now let’s deal with the upload
// possible PHP upload errors
$errors = array(1 => ‘php.ini max file size exceeded’,
2 => ‘html form max file size exceeded’,
3 => ‘file upload was only partial’,
4 => ‘no file was attached’);
// check the upload form was actually submitted else print the form
isset($_POST[‘submit’])
or error(‘the upload form is neaded’, $uploadForm);
// check for PHP’s built-in uploading errors
($_FILES[$fieldname][‘error’] == 0)
or error($errors[$_FILES[$fieldname][‘error’]], $uploadForm);
// check that the file we are working on really was the subject of an HTTP upload
@is_uploaded_file($_FILES[$fieldname][‘tmp_name’])
or error(‘not an HTTP upload’, $uploadForm);
// validation… since this is an image upload script we should run a check
// to make sure the uploaded file is in fact an image. Here is a simple check:
// getimagesize() returns false if the file tested is not an image.
@getimagesize($_FILES[$fieldname][‘tmp_name’])
or error(‘only image uploads are allowed’, $uploadForm);
// make a unique filename for the uploaded file and check it is not already
// taken… if it is already taken keep trying until we find a vacant one
$now = outlet;
while(file_exists($uploadFilename = $uploadsDirectory.$now.’-‘.$_FILES[$fieldname][‘name’]))
{
$now++;
}
// now let’s move the file to its final location and allocate the new filename to it
@move_uploaded_file($_FILES[$fieldname][‘tmp_name’], $uploadFilename)
or error(‘receiving directory insuffiecient permission’, $uploadForm);
// If you got this far, everything has worked and the file has been successfully saved.
// We are now going to redirect the client to a success page.
header(‘Location: ‘ . $uploadSuccess);
// The following function is an error handler which is used
// to output an HTML error page if the file upload fails
function error($error, $location, $seconds = 5)
{
header(“Refresh: $seconds; URL=”$location””);
echo ‘<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.01//EN”‘.”n”.
‘”http://www.w3.org/TR/html4/strict.dtd”>’.”nn”.
‘<html lang=”en”>’.”n”.
‘ <head>’.”n”.
‘ <meta http-equiv=”content-type” content=”text/html; charset=iso-8859-1″>’.”nn”.
‘ <link rel=”stylesheet” type=”text/css” href=”stylesheet.css”>’.”nn”.
‘ <title>Upload error</title>’.”nn”.
‘ </head>’.”nn”.
‘ <body>’.”nn”.
‘ <div id=”Upload”>’.”nn”.
‘ <h1>Upload failure</h1>’.”nn”.
‘ <p>An error has occured: ‘.”nn”.
‘ <span class=”red”>’ . $error . ‘…</span>’.”nn”.
‘ The upload form is reloading</p>’.”nn”.
‘ </div>’.”nn”.
‘</html>’;
exit;
} // end error handler
?>
Now to my issues, first of all I’m trying to delete any previous picture with the “unlink” command without any success so I wounder:
[U][I]what am I doing wrong? Is it even OK to add the unlink command before the upload code like I have done or is there any other way?
Second question, the change name part of my script is actually just adding a word to the chosen file name, this makes a problem when the file is to be read by the page because i have to know the name to use the “img src=” attribute, as it is now I have to rename the picture myself before uploading and that feel really amateur like.
[I][U]Is there some way to change whole name to something of my own choice instead of just adding text to the name??
Would really appreciate any help I could get this drives me crazy over here?
I hope i have given you enough info, this is my first post so please tell me if there is something I have missed, and I have searched the forum for answers but haven’t found anything that solved my problems.