The following code is in case you need to display a snippet of code only on the main page and certain pages of your blog.

<?php wp_reset_query(); ?>
<?php if(is_home() || is_front_page() || is_page( 12) || is_page( 150)): ?>
     Put your code in here...
<?php else: ?>
     Put another code in here...
<?php endif;  ?>

Read the complete WP Conditional Tags here.

 

Adding content in homepage only

<?php if(is_home() && !is_paged() ) { ?>
-- YOUR CONTENT HERE --
<?php } ?>

Adding content in page/2 only

<?php 
// get current page we are on. If not set we can assume we are on page 1.
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
// are we on page two?
if(2 == $paged) {
 ?>
-- YOUR CONTENT HERE --
<?php } ?>

Adding content in tag ‘health’ only

<?php if ( is_tag('health') ) { ?>
-- YOUR CONTENT HERE --
<?php } ?>

Adding content in category ‘movie review’ only

<?php if ( is_category('movie-review') ) { ?>
-- YOUR CONTENT HERE --
<?php } ?>

 

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I’ve been searching about how to crop image thumbnail from the top center (instead of default center center), but unfortunately the only thing to solve this problem is by editing the core.

Open wp-includes – media.php. Find this lines:

$s_x = floor( ($orig_w - $crop_w) / 2 );
$s_y = floor( ($orig_h - $crop_h) / 2 );

And replace with this code:

$s_x = floor( ($orig_w - $crop_w) / 2 );
$s_y = 0; //floor( ($orig_h - $crop_h) / 2 );

And then you need to regenerate your thumbnails using plugins, Regenerate Thumbnails. This step will automatically crop all the post thumbnails again.

To find a categories ID, you need to logged in and go to your dashboard. Open Posts – Categories, and click on one of the category names. The url of the page you are on will show what the category id is. For example, in URL below, your Category ID is 13.

https://www.webminimalist.com/wp-admin/edit-tags.php?action=edit&taxonomy=category&tag_ID=13&post_type=post

This is tutorial about how to adding Page Navigation in your WordPress theme without any plugin.

Open functions.php, and add code below.

/* Adding Page Navigation ********************************************/

	function pagenavi( $p = 2 ) { // pages will be show before and after current page
	  if ( is_singular() ) return; // don't show in single page
	  global $wp_query, $paged;
	  $max_page = $wp_query->max_num_pages;
	  if ( $max_page == 1 ) return; // don't show when only one page
	  if ( empty( $paged ) ) $paged = 1;
	  // echo '<span class="pages">Page: ' . $paged . ' of ' . $max_page . ' </span> '; // pages
	  if ( $paged > $p + 1 ) p_link( 1, 'First' );
	  if ( $paged > $p + 2 ) echo '... ';
	  for( $i = $paged - $p; $i <= $paged + $p; $i++ ) { // Middle pages
	    if ( $i > 0 && $i <= $max_page ) $i == $paged ? print "<span class='page-numbers current'>{$i}</span> " : p_link( $i );
	  }
	  if ( $paged < $max_page - $p - 1 ) echo '... ';
	  if ( $paged < $max_page - $p ) p_link( $max_page, 'Last' );
	}
	function p_link( $i, $title = '' ) {
	  if ( $title == '' ) $title = "Page {$i}";
	  echo "<a class='page-numbers' href='", esc_html( get_pagenum_link( $i ) ), "' title='{$title}'>{$i}</a> ";
	}

And then add <?php pagenavi(); ?> anywhere after the loop. Example: Continue reading →