I am new to PHP and am building a WordPress theme. I would like to add a variable in the functions.php and use it in single.php as an if statement. At present, my single.php has the following code -
<?php $prevPost = get_previous_post(); $prevthumbnail = get_the_post_thumbnail($prevPost->ID, 'keepreading-thumb'); if ( $prevPost ) : ?> <?php previous_post_link('%link',"$prevthumbnail"); ?> <h3><?php previous_post_link('%link'); ?></h3> <p><?php echo excerpt(25); ?></p> <?php endif; ?>
I would like to have the
$prevthumbnail variables to be defined in functions.php and would like to use them in an "if statement" in single.php.
P.S - I am a newbie in coding and would appreciate it if you can give me an answer in detail. Thank you...