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 $prevPost
and $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...