check if file exists and if it does delete it

[dachshund]

hi,

 

i'm trying to get this image upload form to check for and delete any file called 'profilepicture.jpg' in the folder

'/images/upload/profiles/' . $row['id']  . '/profilepicture.jpg'

 

but it always comes up with "can't open file".

 

this code also doesn't continue to upload the image if the file 'profilepicture.jpg' doesn't exist.

 

i hope that all makes sense?

 

basically, i want the someones profile picture (which has been renamed profilepicture.jpg) to be deleted so the new one can take its place.

 

here's my code

 

<?php

include "../template/header.php";

  //delete file that already exists
  
  $parts = explode("/", dirname(__FILE__));
  	$myFile = implode("/", $parts) . '/images/upload/profiles/' . $row['id']  . '/profilepicture.jpg';
$fh = fopen($myFile, 'w') or die("can't open file");
fclose($fh);
unlink($myFile);

//&#1057;heck that we have a file
if((!empty($_FILES["uploaded_file"])) && ($_FILES['uploaded_file']['error'] == 0)) {
  //Check if the file is JPEG image and it's size is less than 350Kb
  $filename = basename($_FILES['uploaded_file']['name']);
  $ext = substr($filename, strrpos($filename, '.') + 1);
  if (($ext == "jpg") && ($_FILES["uploaded_file"]["type"] == "image/jpeg") && 
    ($_FILES["uploaded_file"]["size"] < 350000)) {

//user

$userid = $_SESSION['uid'];
  $query = "SELECT * FROM users WHERE id = '$userid'";
  $result = mysql_query($query);
  $row = mysql_fetch_assoc($result);

    //Determine the path to which we want to save this file
     unSet($parts[(count($parts) - 1)]);
      $filename = "profilepicture.jpg";
      $newname = implode("/", $parts) . '/images/upload/profiles/' . $row['id']  . '/' . $filename;
      //Check if the file with the same name is already exists on the server
      if (!file_exists($newname)) {
        //Attempt to move the uploaded file to it's new place
        if ((move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $newname)) === true) {
           echo "It's done! The file has been saved as: ".$filename;
        } else {
           echo "Error: A problem occurred during file upload!" . ' ' . $newname;
        }
      } else {
         echo "Error: File ".$_FILES["uploaded_file"]["name"]." already exists";
      }
  } else {
     echo "Error: Only .jpg images under 350Kb are accepted for upload";
  }
} else {
echo "Error: No file uploaded";
}

include "../template/footer.php";
?>

 

any help or suggestions would be much appreciated.

 

[ignace]

$parts = explode("/", dirname(__FILE__));
$myFile = implode("/", $parts) .

 

Why first explode it and then re-build it again? $myFile = dirname(__FILE__) . will give you the same as exploding first and then implode it again.

 

Do var_dump($myFile); before $fh = fopen($myFile, 'w') or die("can't open file");

[dachshund]

ah yeah i was missing the unSet part.

 

ok so here is my code now

 

 

<?php

include "../template/header.php";

//user

$userid = $_SESSION['uid'];
  $query = "SELECT * FROM users WHERE id = '$userid'";
  $result = mysql_query($query);
  $row = mysql_fetch_assoc($result);

  //delete file that already exists
  
  $parts = explode("/", dirname(__FILE__));
  unSet($parts[(count($parts) - 1)]);
  	$myFile = implode("/", $parts) . '/images/upload/profiles/' . $row['id']  . '/profilepicture.jpg';
var_dump($myFile); 
$fh = fopen($myFile, 'w') or die("can't open file");
fclose($fh);
unlink($myFile);

//&#1057;heck that we have a file
if((!empty($_FILES["uploaded_file"])) && ($_FILES['uploaded_file']['error'] == 0)) {
  //Check if the file is JPEG image and it's size is less than 350Kb
  $filename = basename($_FILES['uploaded_file']['name']);
  $ext = substr($filename, strrpos($filename, '.') + 1);
  if (($ext == "jpg") && ($_FILES["uploaded_file"]["type"] == "image/jpeg") && 
    ($_FILES["uploaded_file"]["size"] < 350000)) {


    //Determine the path to which we want to save this file
     unSet($parts[(count($parts) - 1)]);
      $filename = "profilepicture.jpg";
      $newname = implode("/", $parts) . '/images/upload/profiles/' . $row['id']  . '/' . $filename;
      //Check if the file with the same name is already exists on the server
      if (!file_exists($newname)) {
        //Attempt to move the uploaded file to it's new place
        if ((move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $newname)) === true) {
           echo "It's done! The file has been saved as: ".$filename;
        } else {
           echo "Error: A problem occurred during file upload!" . ' ' . $newname;
        }
      } else {
         echo "Error: File ".$_FILES["uploaded_file"]["name"]." already exists";
      }
  } else {
     echo "Error: Only .jpg images under 350Kb are accepted for upload";
  }
} else {
echo "Error: No file uploaded";
}

include "../template/footer.php";
?>

 

but when i try to upload an image it brings back

 

string(86) "/images/upload/profiles/1/profilepicture.jpg" Error: A problem occurred during file upload! /images/upload/profiles/1/profilepicture.jpg

 

 

any ideas why?

 

thanks for all the help.

 

[dachshund]

it did actually delete the file as well so that worked.

 

it must just be the upload part following the delete.

 

this worked fine prior to me adding any of the delete code though.

 

 

[ignace]

$parts = explode("/", dirname(__FILE__));
unSet($parts[(count($parts) - 1)]);
$myFile = implode("/", $parts) . '/images/upload/profiles/' . $row['id']  . '/profilepicture.jpg';

 

Is then the same as:

 

$myFile = '../images/upload/profiles/' . $row['id']  . '/profilepicture.jpg';

[dachshund]

yeah i know but ../ doesn't work for some reason.