flexible-content-into-flexible-content-acf-pro

<?php 
if (have_rows('sections')) {
	while (have_rows('sections')) {
		the_row();

		if (get_row_layout() == "text_section") {

			$background_colour = get_sub_field('background_colour');

			if( have_rows('text_element') ) {
				?>
				<section class="<?php echo $background_colour; ?>">
					<div class="container">
						<article class="mod-text mod-padding mod-maxw">
							<?php
							while ( have_rows('text_element') ) {
								the_row();
								$background_colour = get_sub_field('background_colour');

								if(get_row_layout() == "wysiwyg_editor") {
									echo get_sub_field('editor');
								}

								elseif(get_row_layout() == "cta") {
									?>
									<div class="cta">
										<a href="<?php echo get_sub_field('cta_url'); ?>"><?php echo get_sub_field('cta_label'); ?></a>
									</div>
									<?php
								}

								elseif(get_row_layout() == "accordion_single") {
									?>
									<ul class="mod-accordion">
										<?php
										while ( have_rows('accordion_content') ) {
											the_row();
											?>
											<li>                        
												<div class="mod-accordion--toggle">
													<p><strong><?php echo get_sub_field('accordion_title'); ?></strong></p>
													<span class="icon">+</span>
												</div>
												<div class="mod-accordion--content">
													<div>
														<?php echo get_sub_field('accordion_copy'); ?>
													</div>
												</div>
											</li>
											<?php
										}
										?>
									</ul>
									<?php
								}
							}
							?>
						</article>
					</div>
				</section>
				<?php
			}

			if (get_row_layout() == "video") {
				?>
				<article>
					<div class="mod-video">
						<a href="<?php echo get_sub_field('video_url'); ?>" class="samewindow mod-video-popup">
							<img alt="video poster" src="<?php echo get_sub_field('video_poster_image'); ?>">  
							<span class="play-icon"></span>
						</a>
					</div>
				</article>
				<?php
			}
			// etc
		}
	}
}
?>