PDO查询未插入且没有错误

Question

Im trying to execute this code but my code dies because it is not able to insert into the table for some reason.the error given is "there was an error in storing to table" I have looked over my code but cannot see anything wrong with my PDO insert into query nor php error log.

try {
        $result = $s3->putObject([
                'Bucket' => $config['s3']['bucket'],
                'Key' => "uploads/{$name_of_uploaded_file}",
                'Body' => fopen($path_of_uploaded_file, 'rb'),
                'ACL' => 'public-read'
            ]);

            if (is_uploaded_file($_FILES['uploaded_file']['size'])){
                  //send items to pending database

                  //inserts in pending db
                  $sql = "INSERT INTO pending (id,photo,title,description,name,pLike,pDislike) VALUES ('', :photo, :title, :description, :name, :pLike, :pDislike)";
                  $stmt = $conn->prepare($sql); 
                  $stmt->bindParam(':title', $title);
                  $stmt->bindParam(':photo', $result);
                  $stmt->bindParam(':description', $story);
                  $stmt->bindParam(':name', $first_name);
                  $stmt->bindValue(':pLike', 0, PDO::PARAM_INT);
                  $stmt->bindValue(':pDislike', 0, PDO::PARAM_INT);
                  $stmt->execute();       
            }else {
                die("there was an error in storing to table");        
            }

        //remove the file
            unlink($path_of_uploaded_file);
    } catch(S3Exception $e){
        die("there was an error");
    }

Answer 1

It already says in the manual :

Returns TRUE if the file named by filename was uploaded via HTTP POST.

For proper working, the function is_uploaded_file() needs an argument like

$_FILES['userfile']['tmp_name'] ,

the name of the uploaded file on the client's machine $_FILES['userfile']['name'] does not work.

Right now, you're pointing into the size index:

is_uploaded_file($_FILES['uploaded_file']['size']
                                        // ^

Should be:

if (is_uploaded_file($_FILES['uploaded_file']['tmp_name'])){

Answer 2

try{
                  $sql = "INSERT INTO pending (id,photo,title,description,name,pLike,pDislike) VALUES ('', :photo, :title, :description, :name, :pLike, :pDislike)";
                  $stmt = $conn->prepare($sql); 
                  $stmt->bindParam(':title', $title);
                  $stmt->bindParam(':photo', $result);
                  $stmt->bindParam(':description', $story);
                  $stmt->bindParam(':name', $first_name);
                  $stmt->bindValue(':pLike', 0, PDO::PARAM_INT);
                  $stmt->bindValue(':pDislike', 0, PDO::PARAM_INT);
                  $stmt->execute();     
}
catch(PDOException $e){
echo 'error in query:  '.$e->getMessage();
}  

In the first part of your if statement will echo the error in your query (if any)