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$baslik="Bu bir basliktir $zaman";
$filename = 'https://siteadi.com/resimadi.jpg';
$my_post = array();
$my_post['post_title'] = $baslik;
$my_post['post_content'] = "<img src='$filename'>";
$my_post['post_status'] = 'publish';
$my_post['post_author'] = 1;
$my_post['post_category'] = 0;
$my_post['tags_input'] = 'test1,test2,test3';

$the_post_id = wp_insert_post( $my_post );
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////custom field kullanabilirsin

add_post_meta($the_post_id , 'feature_img_from_url', 'hizliresim.com/resim1.png', true);