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WP_Role::add_cap( string $cap, bool $grant = true )

Assign role a capability.

Parameters

$cap

(string) (Required) Capability name.

$grant

(bool) (Optional) Whether role has capability privilege.

Default value: true

More Information

Changing the capabilities of a role 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

File: wp-includes/class-wp-role.php 

public function add_cap( $cap, $grant = true ) {
		$this->capabilities[ $cap ] = $grant;
		wp_roles()->add_cap( $this->name, $cap, $grant );
	}

Uses

Uses Description
wp-includes/capabilities.php: wp_roles()

Retrieves the global WP_Roles instance and instantiates it if necessary.
wp-includes/class-wp-roles.php: WP_Roles::add_cap()

Add capability to role.

Changelog

Version Description
2.0.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_role/add_cap