WordPress

Register and Output a Custom Image Size

Defines a new named thumbnail size, plus two different ways to pull that image back out in a template.

php

/**
 * Create custom thumbnail size
 */
add_image_size( 'custom-thumbnail', 250, 250, true );

Option A — get the image array


$thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'custom-thumbnail' );

echo $thumb[0];

Option B — simpler, WordPress 4.4+


the_post_thumbnail_url( $size );

Want your own copy? Fork this repo and build your own snippet collection. Fork on GitHub →

More WordPress snippets

Register and Output a Custom Nav Menu

Adds a new menu location you can assign in Appearance → Menus, shows how to output it in a template, and includes the multi-menu version too.

Define a Reusable Global String

A simple pattern for storing a value — like a phone number or address — in one place and reusing it anywhere in your theme.

Auto-Escape HTML Typed Inside Code Tags

Makes sure any markup typed inside <code> or <tt> tags in the editor gets escaped automatically, so it displays as visible text instead of being rendered as real HTML.