Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
is_installed( $plugin_name ) ) {
return true;
}
require_once ABSPATH . 'wp-admin/includes/file.php';
require_once ABSPATH . 'wp-admin/includes/misc.php';
require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
require_once ABSPATH . 'wp-admin/includes/theme.php';
$plugin = $this->get_plugin( $plugin_name );
if ( is_null( $plugin ) ) {
return new WP_Error( 'plugin_not_found', 'Plugin not found' );
}
$plugin_data = $plugin->to_array();
$temp_file = download_url( $plugin_data['download_url'] );
if ( is_wp_error( $temp_file ) ) {
return $temp_file;
}
$upgrader = new Plugin_Upgrader( new Plugin_Upgrader_Skin() );
$result = $upgrader->install( $temp_file );
wp_delete_file( $temp_file );
if ( is_wp_error( $result ) ) {
return $result;
}
return true;
}
public function activate( string $plugin_name ): bool {
if ( ! $this->is_installed( $plugin_name ) ) {
return false;
}
if ( $this->is_active( $plugin_name ) ) {
return true;
}
return is_null( activate_plugin( $this->get_plugin_path( $plugin_name ) ) );
}
public function is_installed( string $plugin_name ): bool {
return file_exists( WP_PLUGIN_DIR . '/' . $this->get_plugin_path( $plugin_name ) );
}
public function is_active( string $plugin_name ): bool {
$plugin_path = $this->get_plugin_path( $plugin_name );
return is_plugin_active( $plugin_path );
}
public functi