post_content is empty

Question

I'm trying to make some plugin. This plugin is some kind of auto posting.

function new_post($title,$content)
{
$post = get_post($id);
$feat_image = wp_get_attachment_url( get_post_thumbnail_id($post->ID) );
$title = $post->post_title;
$content = $post->post_content;
echo $title;
echo $content;
}
add_action( 'publish_post', 'new_post' );

I can see only $title, $content is empty.

I've checked mysql in draft status, I can see post_title fields has data but post_content has no data.

post_content has data when I click publish or auto save. I think this plugin run faster than wordpress insert data process.

This plugin have to run after publish or make different way.

How can I fix this code...

I hope wordpress developer's can help.

Answer 1

First, you need to pass the post $id in the function and not $title and $content:

function new_post($id)

Then your function may be echoing the content - check your source code in your browser via "View Page Source" if it appears blank.

However, if you use echo $content then shortcodes, WordPress's formatting and password protection functions will all be broken. You need to wrap your call like this:

echo apply_filters('the_content', $post->post_content);

More info on this here and here

function new_post($post_ID)
{
$post = get_post($post_ID);
$feat_image = wp_get_attachment_url( get_post_thumbnail_id($post->ID) );
$title = $post->post_title;
$content = $post->post_content;
echo $title;
echo apply_filters('the_content', $content);
}
add_action( 'publish_post', 'new_post' );

Also, if you're trying to grab the updated/changed info it will be stored in the $_POST variable. But if you grab info from $post->post_content that is the old info already stored in the database from before you save/publish/update your post. At some point you may also want a conditional statement to check if this is the first time you are publishing the page, or if it is being updated. Something like this:

if( ( $_POST['post_status'] == 'publish' ) && ( $_POST['original_post_status'] != 'publish' ) ) {
// code to execute here...
}