php - how to add posts with image programmatically in wordpress -

this code add post programmatically in wordpress

require(dirname(__file__) . '/wp-load.php');  global $user_id;  $new_post = array(     'post_title' => 'table tennis',     'post_content' => 'table tennis or ping-pong sport in 2 or 4 players hit lightweight ball , forth using table tennis racket. game takes place on hard table divided net. except initial serve, players must allow ball played toward them 1 bounce on side of table , must return bounces on opposite side. points scored when player fails return ball within rules.',     'post_status' => 'publish',     'post_date' => date('y-m-d h:i:s'),     'post_author' => $user_id,     'post_type' => 'post',     'post_category' => array(2), );  $post_id = wp_insert_post($new_post); 

how add image post?

i new wordpress,thanks in advance..

this upload file using wordpress , insert on post featured image.

$wp_filetype = wp_check_filetype($filename, null); $attachment = array(     'post_mime_type' => $wp_filetype['type'],     'post_title' => $filename,     'post_content' => '',     'post_status' => 'inherit' );  $attach_id = wp_insert_attachment( $attachment, $thumbnail, $post_id ); // must first include image.php file // function wp_generate_attachment_metadata() work require_once(abspath . 'wp-admin/includes/image.php'); $attach_data = wp_generate_attachment_metadata( $attach_id, $thumbnail ); wp_update_attachment_metadata( $attach_id, $attach_data );  // add featured image post add_post_meta($post_id, '_thumbnail_id', $attach_id);