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I just found a clever piece of code on line which allows Wordpress posts to be displayed in side by side columns and works great with the title and post excerpt that I want to display.

However I would like also to display a specific featured image that I defined in the functions file in each post. Here is the code that works fine apart from a lack of output for the featured image. I'm guessing my syntax is incorrect at that point.

                    // Custom loop that adds a clearing class to the first item in each row
                    $args = array('numberposts' => -1, 'order' => 'ASC', 'post_type' => 'treatments' ); //For this example I am setting the arguments to return all posts in reverse chronological order. Odds are this will be a different query for your project
                    $allposts = get_posts($args);
                    $numCol = 2; // Set number of columns

                    // Start Counter
                    $counter = 0;
                    foreach ($allposts as $post) {
                        $content = '<div class="six columns'.' '.($counter % $numCol == 0 ? ' alpha' : 'omega').'">'; // Add class to the columns depending on if it is odd or even
                        $content .= '<section class="treatments lightgrey-background">';
                        $content .= '<figure>';
                        $content .= '<img src="'.($post->the_post_thumbnail->small).'" />';
                        $content .= '</figure>';
                        $content .= '<h4>'.$post->post_title.'</h4>';
                        $content .= $post->post_excerpt;
                        $content .= '</section>';
                        $content .= '</div>';
                        echo $content;
                        $counter ++;

I'd like a fallback image if the user hasnt specified a featured image too. I'd guess an if else statement similar to the short hand used to add a class to the columns would be appropriate? Here is the featured image code that is in the functions file.

// add featured image
add_theme_support( 'post-thumbnails' );
set_post_thumbnail_size( 120, 120, true );
add_image_size( 'small', 120, 120, true );
add_image_size( 'medium', 330, 330, true );
add_image_size( 'front_page', 460, 350, true);
add_image_size( 'header', 660, 200, true);
add_image_size( 'large', 600, 390, true );
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This is the syntax problem:

$content .= '<img src="'.($post->the_post_thumbnail->small).'" />';

The the_post_thumbnail() function is not part of the $post object, and would print, rather than return, the post thumbnail, even if that method would work.

Try using get_the_post_thumbnail() instead:

$thumbnail = get_the_post_thumbnail( $post->ID, 'small' );

Note that this function returns the fully formed <img> tag markup, so you would need to adapt your code accordingly:

$content .= get_the_post_thumbnail( $post->ID, 'small' );


Note that 'small' is an image size already defined by WordPress, so you'll want to use a different name. I would use something location-descriptive, such as 'post-two-column':

add_image_size( 'post-two-column', 120, 120, true );

Then, reference accordingly in your loop:

$content .= get_the_post_thumbnail( $post->ID, 'post-two-column' );
share|improve this answer
Perfect that is just what I needed thankyou! – Jonathan Beech Mar 13 '13 at 18:27

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