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jeffsebring/thumbnail_fallback.php

Created August 1, 2013 16:58
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thumbnail size fallback
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thumbnail_fallback.php
/**
* Print Selected Thumbnail Images
* @return string|bool thumbnail html or false
*/
function pU01_thumbnail_img( $size = 'secondary_image', $attr = array() ) {
// Fallback to featured image
if ( ! $thumbnail_id = get_post_meta( get_the_ID(), get_post_type() . "_{$size}_thumbnail_id", true ) ) {
if ( ! $thumbnail_id = get_post_meta( get_the_ID(), "_thumbnail_id", true ) )
return false;
}
// Return with thumbnail filter for lazy loading
return apply_filters( 'post_thumbnail_html', wp_get_attachment_image( $thumbnail_id, $size, false, $attr ), get_the_ID(), $thumbnail_id, $size, $attr );
}
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