php - uploading file using doesn't give error - php

Question

what i want to do is to upload image to the server using php
this is my code
<?php
try {
$name = isset($_POST['variable2']);
$file = rand(1000,100000)."-".isset($_FILES['file']['name']);
$file_name = isset($_FILES['file1']['name']);
$file_loc = isset($_FILES['file1']['tmp_name']);
$file_size = isset($_FILES['file1']['size']);
$file_type = isset($_FILES['file1']['type']);
$folder="uploads123/";
$new_size = $file_size/1024;
$new_file_name = strtolower($file);
$final_file=str_replace(' ','-',$new_file_name);
if(move_uploaded_file($file_loc,$folder.$final_file))
{
echo "good";
}else{
echo "error";
}
} catch (PDOException $pe) {
die("Error occurred:" . $pe->getMessage());
}
?>
these are my problems
why is it that the output it just the "error" from the if statement? it doesn't give details about the error even if i'm using try and catch.
even if i give a wrong foldername(the directory where the image to be uploaded) it just give me output like "error" from the if statement.
it doesn't give error that the folder doesn't exist on the server.
thank you.

Answer 1

Your html form is like that?
<form action="target.php" enctype="multipart/form-data">
<!-- Content -->
</form>

Answer 2

Does folder exists? check privilegies on server for folder
Good way before move file:
$upload_dir = '/uploads123';
if(!is_dir($upload_dir)){
mkdir($upload_dir, 0777); // you may set your access rule
}
Then you can try move file to this dir

Answer 3

EDIT: Try changing PDOException to Exception

Answer 4

isset() returns a boolean (true or false)
$file_loc will not be a valid file location, but is a boolean:
$file_loc = isset($_FILES['file1']['tmp_name']); // $file_loc = true
move_uploaded_file wil fail as it has no valid file to move and returns false. Your code will echo "error" as a result of move_uploaded_file returning false.
There is no Exception thrown, let alone a PDOException.