Generate <meta name="description" Using the page title + first sentence of body text

Question

So what I'd like to do is generate a meta description like this one

<meta name="description" content="[post_title]Craftsman 3 in 1 tool set. [post_content]This is a sentence or a few words from the main content body text which was entered in the post or page description of item..."/>

The meta description would take the page title and a few words or a sentence from the main post content.

Currently no meta description is being generated as I can see. Could you recommend a way to work this in. I'd like to avoid using bloated plugins etc and it is not feasible to go through each post 1 by 1 and do this manually as there are thousands of posts and pages.

Answer 1

You can use wp_head action to add something to head section. You can change the output according your needs.

<?php
add_action('wp_head','add_meta_des');

function add_meta_des() {

    if(is_single())
    {       
        global $wp_query;
        $post = $wp_query->post;
        $page_id = $post->ID;
        $page_object = get_page( $page_id );
        $content = wp_trim_words($page_object->post_content,30);        
        $output="<meta name='description' content='".get_the_title()."--".$content."'/>";
        echo $output;
    }
}
?>