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How to write conditions on capabilities not on user role?

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    Capabilities are far easier to test than user roles. How were you testing user roles?
    – Rup
    May 18, 2021 at 9:24
  • I was implementing that in a plugin and was getting error, added if(!function_exists('wp_get_current_user')) { include(ABSPATH . "wp-includes/pluggable.php"); } above that and it worked
    – Ricky
    May 27, 2021 at 9:17

1 Answer 1

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With current_user_can(), or $user->has_cap() for other users:.

if ( ! current_user_can( 'delete_post', $post_id ) ) {
    wp_die( __( 'Sorry, you are not allowed to move this item to the Trash.' ) );
}
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