PHP Error - 'Can't use function return value in write context'

Question

So, I just got this error on a page that is meant to show some product categories:

Fatal error: Can't use function return value in write context in /home/name/public_html/wp-content/themes/name/taxonomy-prodcat.php on line 37

On line 37 is this code:

<?php if(!empty(get_field('product_size', get_the_ID()))): ?>
                                            <p class="producttext"><span class="boldproduct">Size -</span> <?php echo get_field('product_size', get_the_ID()); ?></p>
                                        <?php endif; ?>

PHP Version 5.6.30 MySQL Version 5.6.35

I really cant find the problem. Any help ?

https://stackoverflow.com/questions/1075534/cant-use-method-return-value-in-write-context — cornelb, Jun 07 '17 at 15:46
just echo this code get_field('product_size', get_the_ID()), What is the output — Arun, Jun 07 '17 at 15:48
Possible duplicate of [Can't use method return value in write context](https://stackoverflow.com/questions/1075534/cant-use-method-return-value-in-write-context) — Kirk Beard, Jun 08 '17 at 14:12

score 0 · Answer 1 · answered Jun 07 '17 at 15:47

0

You must write:

$v = get_field(...); if(!empty($v))...

answered Jun 07 '17 at 15:47

VirCom

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score 0 · Answer 2 · answered Jun 07 '17 at 15:51

0

<?php 
$values = get_field( 'product_size' , get_the_ID());
if ( $values ) { ?>
    <p class="producttext"><span class="boldproduct">Size -</span> <?php echo get_field('product_size', get_the_ID()); ?></p>
<?php
} ?>

answered Jun 07 '17 at 15:51

Arun

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1

the logic is the same – Francisco Couto Jun 07 '17 at 16:17

PHP Error - 'Can't use function return value in write context'

2 Answers2