Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

WordPress

array $size not working in wp_get_attachment_image_src function

Hi. I am adapting the code from Bootstap to WordPress i want use array $size in function wp_get_attachment_image_src but this function only works with "thumbnail" and not with my values.

    <?php
            $thumbnail_id = get_post_thumbnail_id(); 
            $thumbnail_url = wp_get_attachment_image_src( $thumbnail_id, array('250', '300'), true );
      ?>

Don't work.

    <?php
            $thumbnail_id = get_post_thumbnail_id(); 
            $size = array('width'=>250,'heith'=>250);
            $thumbnail_url = wp_get_attachment_image_src( $thumbnail_id, $size, true );
      ?>

Don't work.

Im triyng to make this modification because i need images with the same size and not this:

http://imgur.com/a/GmDbF

2 Answers

Muhammad Ehsan Hanif
Muhammad Ehsan Hanif
8,236 Points

You can use the add image size function in your functions.php file like this.

add_action( 'after_setup_theme', 'wpdocs_theme_setup' );
function wpdocs_theme_setup() {
    add_image_size( 'category-thumb', 300 ); // 300 pixels wide (and unlimited height)
    add_image_size( 'homepage-thumb', 250, 250, true ); // (cropped)
}

and then use it in theme file with the code below.

wp_get_attachment_image_src( $thumbnail_id, 'category-thumb' );

Reference: https://developer.wordpress.org/reference/functions/add_image_size/

Thanks.