accordion repeater field

// Custom accordion Shortcode: [accordion_shortcode]
function my_custom_shortcode_function() {	
	$repeater_field = get_field('accordion');
	if ($repeater_field) {
	?>
	<div class="accordionOtrDiv" >
		<?php
		$aria = 1;
		foreach ($repeater_field as $row) {
			$heading_element = $row['accordion_heading'];
			$wysiwyg_editor = $row['accordion_text'];
		?>
		<div class="accordionInrDiv" >		
			<div class="accordionItem">
				<button aria-expanded="false" aria-controls="<?php echo 'tab-title-'.$aria; ?>" class="accordionTitle"> <?php echo $heading_element; ?></button>
				<div class="accordionContent" aria-labelledby="<?php echo 'tab-title-'.$aria; ?>">
					<?php echo $wysiwyg_editor; ?>
				</div>
			</div>		
		</div>
	<?php			
			$aria++;
		}
		?>
	</div>
		<?php
	}	
}
add_shortcode('accordion_shortcode', 'my_custom_shortcode_function');