Select Callback Function. */ final class Select_Callback_Function { public static function output( $settings, $value ) { if ( ! \is_string( $value ) || empty( $value ) ) { $value = ''; } $output = ''; $output .= '' . \esc_html__( '— Select —', 'total-theme-core' ) . ''; $callbacks = []; if ( \defined( '\VCEX_CALLBACK_FUNCTION_WHITELIST' ) && \is_array( \VCEX_CALLBACK_FUNCTION_WHITELIST ) ) { $callbacks = \VCEX_CALLBACK_FUNCTION_WHITELIST; } foreach ( $callbacks as $callback ) { $callback = str_replace( '\\', '\\\\', $callback ); // replace single \ to double \\ to prevent issues with namespaces. $output .= '' . \esc_html( $callback ) . ''; } if ( $value && ! \in_array( $value, $callbacks ) ) { $output .= '' . \esc_html( $value ) . ''; } $output .= ''; return $output; } }