wrong with wp_generate_attachment_metadata() - php

Question

It works (upload , send to db) but
wp_generate_attachment_metadata() returns bad letters whene file uploaded !
some of the wrong charechters :
����JFIF��;CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 90 ��C ��C ����"�� ���}!1AQa"q2���#B��R��$3br� %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz��������������������������������������������������������������������������� ���w!1AQaq"2�B���� #3R�br� $4�
the code :
if (isset($_FILES['ed_header_logo'] ) && !empty($_FILES['ed_header_logo']['name']) )
{
$filename = $_FILES['ed_header_logo']['name'];
$wp_filetype = wp_check_filetype( basename($filename), null );
$wp_upload_dir = wp_upload_dir();
move_uploaded_file( $_FILES['ed_header_logo']['tmp_name'], $wp_upload_dir['path'] . '/' . $filename );
$url = $wp_upload_dir['url'] . '/' . basename( $filename );
$attachment = array(
'guid' => $url,
'post_mime_type' => $wp_filetype['type'],
'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $filename ) ),
'post_content' => 'weblogo',
'post_status' => 'inherit'
);
$attach_id = wp_insert_attachment( $attachment, $url, 37 );
require_once( ABSPATH . 'wp-admin/includes/image.php' );
$attach_data = wp_generate_attachment_metadata( $attach_id, $url );
wp_update_attachment_metadata( $attach_id, $attach_data );
}

Answer 1

try this:
if (isset($_FILES['ed_header_logo'] ) && !empty($_FILES['ed_header_logo']['name']) )
{
$uploadedfile = $_FILES['ed_header_logo'];
$upload_name = $_FILES['ed_header_logoe']['name'];
$uploads = wp_upload_dir();
$filepath = $uploads['path']."/$upload_name";
if ( ! function_exists( 'wp_handle_upload' ) )
{
require_once( ABSPATH . 'wp-admin/includes/file.php' );
}
require_once( ABSPATH . 'wp-admin/includes/image.php' );
$upload_overrides = array( 'test_form' => false );
//$attach_id = media_handle_upload( $file, $new_post );
$movefile = wp_handle_upload( $uploadedfile, $upload_overrides );
//print_r($movefile);
if ( $movefile && !isset( $movefile['error'] ) ) {
$file = $movefile['file'];
$url = $movefile['url'];
$type = $movefile['type'];
//media_handle_upload( $file_handler, 0 );
$attachment = array(
'post_mime_type' => $type ,
'post_title' => $upload_name,
'post_content' => 'Image for '.$upload_name,
'post_status' => 'inherit'
);
$attach_id=wp_insert_attachment( $attachment, $file, 0);
$attach_data = wp_generate_attachment_metadata( $attach_id, $file );
wp_update_attachment_metadata( $attach_id, $attach_data );
}