paginate_links() for bootstrap 4

// WordPress pagination for boostrap 4
if ( !function_exists( 'wpse64458_pagination' ) ) {
	function wpse64458_pagination(){
		global $wp_query;
		ob_start();
		$translated = esc_html__( 'Page', 'wpse64458' ); // Supply translatable string
		$pagination =  paginate_links( array(
		'base' => str_replace( PHP_INT_MAX, '%#%', esc_url( get_pagenum_link( PHP_INT_MAX ) ) ),
		'format' => '?paged=%#%',
		'current' => max( 1, get_query_var('paged') ),
		'total' => $wp_query->max_num_pages,
		'type' => 'array',
		'prev_text'          => __('<span></span> Prev', 'wpse64458'),
		'next_text'          => __('Next <span></span>', 'wpse64458'),
		'before_page_number' => '<span class="screen-reader-text">' . $translated . ' </span>'
		) );  
		if ( ! empty( $pagination ) ) : ?>
		<ul class="pagination pagination-lg wpse64458_pagination">
		<?php foreach ( $pagination as $key => $page_link ) : ?>
		  <li class="page-item<?php if ( strpos( $page_link, 'current' ) !== false ) { echo ' active'; } ?>"><?php echo str_replace( 'page-numbers', 'page-link', $page_link ); ?></li>
		<?php endforeach ?>
		</ul>
		<?php endif;
		echo ob_get_clean();
	}
}