Fix paths from file error

- Remove the temp name if the file has an error.
- Standardized the name with the PHP conventions.

Author: gtg-bantonio

src/Http/MultipartParser.php

@@ -222,7 +222,6 @@ private function parseFile(string $name, string $filename, ?string $contentType,
     private function parseUploadedFile(string $filename, ?string $contentType, string $contents): ?UploadedFile
     {
         $size = strlen($contents);
-        $tempFileName = tempnam(sys_get_temp_dir(), 'PHP_UPLOAD_FILE_');
 
         // no file selected (zero size and empty filename)
         if ($size === 0 && $filename === '') {
@@ -232,7 +231,7 @@ private function parseUploadedFile(string $filename, ?string $contentType, strin
             }
 
             return new UploadedFile(
-                $tempFileName,
+                '',
                 $filename,
                 $contentType,
                 UPLOAD_ERR_NO_FILE,
@@ -248,7 +247,7 @@ private function parseUploadedFile(string $filename, ?string $contentType, strin
         // file exceeds "upload_max_filesize" ini setting
         if ($size > $this->uploadMaxFilesize) {
             return new UploadedFile(
-                $tempFileName,
+                '',
                 $filename,
                 $contentType,
                 UPLOAD_ERR_INI_SIZE,
@@ -259,14 +258,15 @@ private function parseUploadedFile(string $filename, ?string $contentType, strin
         // file exceeds MAX_FILE_SIZE value
         if ($this->maxFileSize !== null && $size > $this->maxFileSize) {
             return new UploadedFile(
-                $tempFileName,
+                '',
                 $filename,
                 $contentType,
                 UPLOAD_ERR_FORM_SIZE,
                 true,
             );
         }
 
+        $tempFileName = tempnam(sys_get_temp_dir(), 'php');
         file_put_contents($tempFileName, $contents);
 
         return new UploadedFile(