Select – if null (nothing selected)

• ForbiddenChunk

• May 9, 2019 at 1:52 am

I have a select field where the user can select one, two or as many as they need and it outputs a specific image related to what is selected.

<?php 
	$Logos = array(
		'Aqua-Max' => $image_url. '/product-logos/aqua-max.jpg',
		'Aquavantage' => $image_url. '/product-logos/aquavantage.jpg',
		'GripTop' => $image_url. '/product-logos/grip-top.jpg',
		'Inter-ax2' => $image_url. '/product-logos/inter-ax2.jpg',
		'Opt-Emax' => $image_url. '/product-logos/opt-emax.jpg',
		'Pamrex' => $image_url. '/product-logos/pamrex.jpg',
		'Ult-Emax' => $image_url. '/product-logos/ult-emax.jpg',
		'Warrior' => $image_url. '/product-logos/warrior.jpg',
		'Waterway' => $image_url. '/product-logos/waterway.png',
	);
	$values = get_field('product_logo');
	foreach ($values as $value) {
	?>
		<?php if( !empty($values) ): ?>
			<div class="product_logo">
		  	<img src="<?php echo $Logos[$value] ?>" alt="<?php the_field('product_logo') ?>">
	  	</div>
	<?php endif; ?>
	<?php 
	}
?>

However when nothing is selected, it still shows and gives an error;

<img src="<br />
<b>Notice</b>:  Undefined index:  in <b>C:\laragon\www\pam-saint-gobain\wp-content\themes\pam\single-products.php</b> on line <b>41</b><br />
" alt="">

I even have;

<?php if( get_field('product_logo') ): ?>

Beforehand but it still shows that error when even nothing is selected.

• ForbiddenChunk

• May 9, 2019 at 2:04 am

Solved it with;

<?php if( $value == '' ): ?>
	
<?php else: ?>
	<div class="product_logo">
  	<img src="<?php echo $logos[$value] ?>" alt="<?php the_field('product_logo') ?>">
	</div>
<?php endif; ?>