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php7.2 error

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    laura
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    any quick fix for the error below on php7.2? the error does not occur on php7.1

    Warning: sizeof(): Parameter must be an array or an object that implements Countable in /wp-content/themes/zorka/woocommerce/single-product/meta.php on line 28

    line 28 is “$tag_count = sizeof( get_the_terms( $post->ID, ‘product_tag’ ) );”

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