Cannot upload two of the same image files - php

Question

I have an issue with uploading the same image twice, but in different sizes. What I thought I could do was having one file input, where I choose the image. In the upload php file, I have two variables:
$img = $_POST["file"];
$imgThumbnail = $_POST["file"];
I have then created a function to upload images to my webpage in php. I call the functions twice after each other, but the second time the function is called, I get the error "No such file or directory.." - the first image is uploaded correctly, but the second is not because of this error. What am I doing wrong, when the file is actually the same?
// First time, normal size img
uploadNewsIMG($imgFile, $pathToUpload, $img_author, $img_text, $img_tags, 950, "false");
// Second time, thumbnail size img - ERROR IS HERE "No such file or directory.. etc."
uploadNewsIMG($imgFileThumbnail, $pathToUpload, $img_author, $img_text, $img_tags, 400, "true");
When uploading the second image, this is the line that gives me the "No such.." error:
$fileName = $fileIMG['tmp_name']; // <- THIS IS THE VARIABLE "$imgFileThumbnail"
$image_size = getimagesize($fileName); // <- ERROR HERE
EDIT
This is the function uploadNewsIMG():
function uploadNewsIMG($fileIMG, $path, $author, $alt_text, $img_tags, $max_width, $thumbnail) {
global $con;
$realFileName = $fileIMG['name'];
$fileName = $fileIMG['tmp_name'];
$realFileName = str_replace("(", "", $realFileName);
$realFileName = str_replace(")", "", $realFileName);
$fileName = str_replace("(", "", $fileName);
$fileName = str_replace(")", "", $fileName);
$realFileName = strtolower($realFileName);
$now = strtotime("now");
if ($thumbnail != "true") {
$targetFilePath = "../../" . $path . $now . "-" . $realFileName;
$img_source_link = $path . $now . "-" . $realFileName;
} else {
$targetFilePath = "../../" . $path . "thumb-" . $now . "-" . $realFileName;
$img_source_link = $path . "thumb-" . $now . "-" . $realFileName;
}
$targetFilePath = str_replace(" ","", $targetFilePath);
$img_source_link = str_replace(" ","", $img_source_link);
// Resize billedet
$dimension = $max_width;
$image_size = getimagesize($fileName);
$mime = $image_size['mime'];
$width = $image_size[0];
$height = $image_size[1];
$ratio = $width / $height;
if ($ratio > 1) {
$new_width = $dimension;
$new_height = $dimension / $ratio;
} else {
$new_height = $dimension;
$new_width = $dimension * $ratio;
}
$src = imagecreatefromstring(file_get_contents($fileName));
$destination = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($destination, $src, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
if ($mime == "image/jpeg") {
imagejpeg($destination, $fileName, 100);
} else if ($mime == "image/png") {
imagepng($destination, $fileName, 9);
}
imagedestroy($src);
imagedestroy($destination);
if (move_uploaded_file($fileName, $targetFilePath)) {
}
}

Answer 1

The problem here is that once you call:
move_uploaded_file
The file is gone, and you can't access it on the second try because no such file exists anymore.
What I would recommend you to do instead is just copy the image instead of moving it. This way you will be able to run this function as many times as you like.
Here is the link for this function: PHP copy.