Display sidebar before each single post entry

display-widget-area.php

<?php
//* Do NOT include the opening php tag, only copy the code below

//* Display sidebar before each single post entry
add_action( 'bizznis_before_entry', 'custom_after_entry_widget' );
function custom_after_entry_widget() {
	if ( is_singular( 'post' ) ) {
		# function that returns sidebar widgets for the registered area
		bizznis_widget_area( 'before-entry', array(
			'before' 	=> '<div class="before-entry widget-area">',
			'after' 	=> '</div>',
		) );
	}
}