Trying to get post thumbnails working on my theme … err

Instead of:

<?php
if ( has_post_thumbnail() ) {
	// the current post has a thumbnail
} else {
	// the current post lacks a thumbnail
}
?>

try:

<?php if( function_exists( 'add_theme_support' ) ) the_post_thumbnail(); ?>

Hmm, still no change.

Got it! Change:

add_theme_support( 'post-thumbnails', array( 'post' ) ); // Add it for posts
add_theme_support( 'post-thumbnails', array( 'page' ) ); // Add it for pages

to:

add_theme_support( 'post-thumbnails' ); // Add it for posts & pages

Thanks for all the help but, unfortunately, there is still no change.

Could it be that I am not putting the code in index.php in the right places?

Here is index.php as it is now:

https://wordpress.pastebin.com/Dm5KC9Nq

Thanks for all the help

It’s in 2 places right now, so get rid of the <?php if( function_exists( 'add_theme_support' ) ) the_post_thumbnail(); ?> line first. Other than that, I don’t see why it doesn’t work. I’ve used almost exactly the same code in multiple templates/themes.

<div class="postcontent">
<?php if( function_exists( 'add_theme_support' ) ) the_post_thumbnail(); ?>
<?php the_excerpt();?>
</div>

Oh, so <?php the_post_thumbnail(); ?> is interchangeable with <?php if( function_exists( ‘add_theme_support’ ) ) the_post_thumbnail(); ?>
?

Odd that it is not working.

hmmm…this thread has gotten me confused! I’m just gonna post up the code I use in case it helps ok?

functions.php

// THIS IS THUMBNAIL SUPPORT
if ( function_exists( 'add_theme_support' ) ) { // Added in 2.9
	add_theme_support( 'post-thumbnails' );
	set_post_thumbnail_size( 50, 50, true ); // Normal post thumbnails
	add_image_size( 'single-post-thumbnail', 400, 9999 ); // Permalink thumbnail size
         add_image_size( 'title-image', 50, 30 ); // Title mini photo
}
//THIS TURNS THUMBNAIL INTO LINK TO POST
add_filter( 'post_thumbnail_html', 'my_post_image_html', 10, 3 );

function my_post_image_html( $html, $post_id, $post_image_id ) {

	$html = '<a href="' . get_permalink( $post_id ) . '" title="' . esc_attr( get_post_field( 'post_title', $post_id ) ) . '">' . $html . '</a>';

	return $html;
}

Then in my index.php I use:
<?php the_post_thumbnail('title-image', array('class' => 'titleImage', 'alt' => 'Title Icon')); ?>
to call up my tiny pic….its just an itty bitty icon

Then in index I also use:
<?php the_post_thumbnail(array( 75,75 ), array('class' => 'postImage', 'alt' => 'Post Thumbnail')); ?>
Which is a larger square thumbnail size

And in single.php I use:
<?php the_post_thumbnail('single-post-thumbnail', array('class' => 'pageImage', 'alt' => 'Full Page Image')); ?>
Which gets me a big ole (400px wide) picture

Hmm….I was trying to help….but I think I’ve made it clear..as mud. Ignore me if this just confuses further

Wow wow wow. Wait a sec. I had <?php if( function_exists( ‘add_theme_support’ ) ) the_post_thumbnail(); ?> in my page template. Am i supposed to have that in functions.php?

nope…. thats a fail safe….the if function_exists bit keeps your theme safe for older WP versions. Its not technically required if you are using the newest WP, and never plan to release your theme to public.

But it’s really only needed once, I beluieve. I personally keep it on the functions.php side

OK, I posted Voodoo’s exact code. Still nothing. Here is the main index (code is just before excerpt):
https://pastebin.com/RkGpktWm

Here is functions.php (code is at the bottom):
https://pastebin.com/1XbsZS31

Hmm…the code looks good….so when you go to make a new post, there isn’t a little box over on the right side now which allows you to insert/upload your desired thumbnail for the post?

OH shoot there is! I thought this code automatically grabbed the first picture in a post and displayed a thumbnail of it lol.

How do I do that?

Thanks so much RVoodoo and esmi

But even with this code, I can choose a thumbnail while editing a post but the thumbnail won’t show up in my index.php despite having placed: <?php the_post_thumbnail(‘title-image’, array(‘class’ => ‘titleImage’, ‘alt’ => ‘Title Icon’)); ?>
in index.php

How do I do that?

I’ve seen a few topics recently about that….I’m not sure exactly how to do it tho. You may want to try digging in to see if you can find one of those. Or maybe start a new thread now that you know what you are looking for a bit better.

As for the image not showing up….I’m really not sure. I’ll peep your code again, but it works great on my site…..