alisko

i solved the problem like that. i dont use $post->post_content. it is unnecessary. anyway you get formated content from the function.

function like_content($content) {
	global $post;
                $original = $content;
		$content = "<div class=\"ikaz\">";
		$content .= "hello all";
		$content .= "</div>";
		$content .= $original;
return $content;
}
add_filter( 'the_content', 'like_content' );