render() public method
Renders the whole field. This method will generate the label, error tag, input tag and hint tag (if any), and assemble them into HTML according to $template.
public string render ( $content = null )$content
string|callable
The content within the field container. If null (not set), the default methods will be called to generate the label, error tag and input tag, and use them as the content. If a callable, it will be called to generate the content. The signature o