Change Default Attributes in Display Posts Shortcode

Written by Bill EricksonPublished on May 28, 2015Updated on December 5, 2018

	<?php

	/**
	* Set Defaults in Display Posts Shortcode
	* @see https://displayposts.com/2019/01/04/change-default-attributes/
	*
	* @param array $out, the output array of shortcode attributes (after user-defined and defaults have been combined)
	* @param array $pairs, the supported attributes and their defaults
	* @param array $atts, the user defined shortcode attributes
	* @return array $out, modified output
	*/
	function be_dps_defaults( $out, $pairs, $atts ) {
	$new_defaults = array(
	'posts_per_page' => 20,
	'include_excerpt' => true,
	);

	foreach( $new_defaults as $name => $default ) {
	if( array_key_exists( $name, $atts ) )
	$out[$name] = $atts[$name];
	else
	$out[$name] = $default;
	}

	return $out;
	}
	add_filter( 'shortcode_atts_display-posts', 'be_dps_defaults', 10, 3 );