Featured Image as Previous Next Post Navigation in WordPress

Just add this code to single.php, replace or comment the default function like the_post_navigation, get_previous_post, get_next_post, etc.

Easy!

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Add Custom Size Image to Media Popup in WordPress

In WordPres 4.5, my old function to add a custom size to media uploader seems not working anymore. But I found that new way to add custom size image is a lot simpler using image_size_names_choose filter.

Basically when you create your own image sizes using the add_image_size function:

you can just add the new sizes to image_size_names_choose:

Screen Shot 2016-06-06 at 4.36.51 PM

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