add post content in meta description in yoast

Question

How can I add post content in meta description via Title & Metas?

I have seen excerpt variable %%excerpt%% but it will give only excerpt but I want whole content in meta description.

Can any one help me for this because I can not found variable for content?

Thankns

Answer 1

Here is a safe and Yoast preferred method

add_action('wp_head','add_custom_meta_description_box');

function retrieve_var1_replacement( $var1 ) {
        global $post;
       return strip_tags($post->post_content);
}
function register_my_plugin_extra_replacements() {
       wpseo_register_var_replacement( '%%mycustomdesc%%', 'retrieve_var1_replacement', 'advanced', 'this is a help text for myvar1' );
}
add_action( 'wpseo_register_extra_replacements', 'register_my_plugin_extra_replacements' );

You can now replace your %%excerpt%% with %%mycustomdesc%%

Answer 2

In Yoast SEO there is no variable available for the content. The 2 variables that are available are %%excerpt%% and %%excerpt_only%%. The difference between these 2 is:

%%excerpt%% - Replaced with the post/page excerpt (or auto-generated if it does not exist)

%%excerpt_only%% - Replaced with the post/page excerpt (without auto-generation)

For a full list of available variables you can click on the "Help" tab (top right) when viewing the "Title and Metas" page of the Yoast SEO plugin.

If using %%excerpt_only%% and adding your post content in your post excerpt is not going to work for you then you could write your own function to hook into the wpseo_metadesc filter.

function custom_seo_description( $seo_desc ) {
  $seo_desc = "This is a custom description";
  return $seo_desc;
}

add_filter( 'wpseo_metadesc', 'custom_seo_description', 10, 1 );

I've not tested this code but something along theser lines should work. More info on the Yoast SEO API can be found here: https://yoast.com/wordpress/plugins/seo/api/