Linas

useris@dev:~/web/public_html$ ls -al
total 12
drwxr-xr-x 2 useris useris 4096 Oct 20 15:12 .
drwxr-x--x 5 useris useris 4096 Oct 20 11:17 ..
-rw-r--r-- 1 useris useris 2167 Oct 20 15:12 info.php

code of: info.php
<?php
//phpinfo();

error_reporting(E_ALL);
ini_set('display_errors',1);

function isFastCGI () {
    return !is_null($_SERVER['FCGI_SERVER_VERSION']);
}

var_dump(isFastCGI());

var_dump(getmyuid(), getmygid());

var_dump(is_writable('.'));
var_dump(__DIR__);


?>
<!DOCTYPE html>
<html>
<body>

<form action="" method="post" enctype="multipart/form-data">
    Select image to upload:
    <input type="file" name="fileToUpload" id="fileToUpload">
    <input type="submit" value="Upload Image" name="submit">
</form>

<?php


if(isset($_FILES["fileToUpload"])){

$target_dir = "uploads/";

if(!file_exists(__DIR__.'/'.$target_dir)){


 if(!mkdir(__DIR__.'/'.'uploads', 0755, true)) {
        var_dump(error_get_last());
}

}
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
    $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
    if($check !== false) {
        echo "File is an image - " . $check["mime"] . ".";
        $uploadOk = 1;
    } else {
        echo "File is not an image.";
        $uploadOk = 0;
    }
}
// Check if file already exists
if (file_exists($target_file)) {
    echo "Sorry, file already exists.";
    $uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
    echo "Sorry, your file is too large.";
    $uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
    echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
    $uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
    echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
        echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
    } else {
        echo "Sorry, there was an error uploading your file.";
        var_dump(error_get_last());
    }
}

}
?>
</body>
</html>

Response on upload
Notice: Undefined index: FCGI_SERVER_VERSION in /home/useris/web/public_html/info.php on line 8
bool(false) int(1000) int(1000) bool(false) string(28) "/home/useris/web/public_html"
Select image to upload:  Choose File  Upload Image

Warning: mkdir(): Permission denied in /home/useris/web/public_html/info.php on line 40
array(4) { ["type"]=> int(2) ["message"]=> string(26) "mkdir(): Permission denied" ["file"]=> string(37) "/home/useris/web/public_html/info.php" ["line"]=> int(40) } File is an image - image/jpeg.
Warning: move_uploaded_file(uploads/Juslintek-Logo.jpg): failed to open stream: No such file or directory in /home/useris/web/public_html/info.php on line 80

Warning: move_uploaded_file(): Unable to move '/tmp/phpdpenOV' to 'uploads/Juslintek-Logo.jpg' in /home/useris/web/public_html/info.php on line 80
Sorry, there was an error uploading your file.array(4) { ["type"]=> int(2) ["message"]=> string(85) "move_uploaded_file(): Unable to move '/tmp/phpdpenOV' to 'uploads/Juslintek-Logo.jpg'" ["file"]=> string(37) "/home/useris/web/public_html/info.php" ["line"]=> int(80) }