Adds capability and grant or deny access to capability.

Parameters

$capstringrequired

Capability name.

$grantbooloptional

Whether to grant capability to user.

Default:true

More Information

Changing the capabilities of a user is persistent, meaning the added capability will stay in effect until explicitly revoked.

This setting is saved to the database (in table wp_options, field wp_user_roles), so it might be better to run this on theme/plugin activation.

Source

public function add_cap( $cap, $grant = true ) {
	$this->caps[ $cap ] = $grant;
	update_user_meta( $this->ID, $this->cap_key, $this->caps );
	$this->get_role_caps();
	$this->update_user_level_from_caps();
}

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