custom-oembed-template.php

<?php
/**
 * Embed ブログカードをカスタマイズ
 * https://snow-monkey.2inc.org/manual/manual-advanced/customize-blog-card/
 */
add_filter(
	'snow_monkey_oembed_blog_card_template',
	function( $template, $cache ) {

		$template = '';

		$cache['cached_time'] = 0;
		$target = false === strpos( $cache['domain'], $_SERVER['SERVER_NAME'] )
			? 'target="_blank"'
			: 'target="_self"';
		$blog_link    = $cache['permalink'];
		$blog_thumb   = $cache['thumbnail']
			? '<img src="' . esc_url( $cache['thumbnail'] ) . '" alt="">'
			: '';
		$blog_title   = $cache['title'];
		$blog_excerpt = $cache['description']
			? $cache['description']
			: '';
		$blog_domain  = $cache['domain']
			? $cache['domain']
			: '';

		$template .= '<a href="' . esc_html( $blog_link ) . '" ' . $target . '>' . PHP_EOL;
		$template .= '<div class="wp-oembed-blog-card__figure">' . PHP_EOL;
		$template .= $blog_thumb . PHP_EOL;
		$template .= '</div>' . PHP_EOL;
		$template .= '<div class="blog-content__wrap">' . PHP_EOL;
		$template .= '<h4 class="blog-title">' . esc_html( $blog_title ) . '</h4>' . PHP_EOL;
		$template .= '<div class="blog-content">' . esc_html( $blog_excerpt ) . '</div>' . PHP_EOL;
		$template .= '<div class="blog-domain">' . esc_attr( $blog_domain ) . '</div>' . PHP_EOL;
		$template .= '</div>' . PHP_EOL;
		$template .= '</a>' . PHP_EOL;

		return $template;

	},
	10,
	2
);