How to replace the existing metatag using the backend to insure a thumbnail image gets fetched when we share on social media?

Question

How to replace the existing metatag using the backend to insure a thumbnail image gets fetched when we share on social media?

popquiz

2022年1月20日 10:21

function theme_a_header_metadata() {

  global $post;

  $image = \wpplugin\blogwidget\getBlogImage($post);

?

  meta property=og:image content=?= getLocalImage($image, '1344x') ? /

?php

}
add_action( 'wp_head', 'theme_a_header_metadata' );

So I have this function, but the issue is that there's already a meta property with the property value of og:image, so how do I replace the meta tag? I need to use the backend, and I don't want to install any plugin.

Topic wp-head plugin-development Wordpress

Category Web

admcfajn · Accepted Answer · 2022年1月20日 10:21

add_action

add_action currently supports 4 parameters: string $hook_name, callable $callback, int $priority = 10, int $accepted_args = 1

Try adjusting the 3rd parameter "priority" to add the action later than any existing actions (which may have been created by plugins or themes).

How to replace the existing metatag using the backend to insure a thumbnail image gets fetched when we share on social media?

add_action

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