php-72-crash.php

<?php

add_action( 'template_redirect', function () {

	if ( ! isset( $_GET['crash'] ) ) {
		return;
	}

	$urls = [];

	$urls[] = home_url();
	$urls[] = home_url( '404' );

	$posts = get_posts( [
		'numberposts' => 1,
		'fields'      => 'ids',
	] );

	if ( ! empty( $posts ) ) {
		$urls[] = get_permalink( $posts[0] );
	}

	$pages = get_posts( [
		'numberposts' => 1,
		'fields'      => 'ids',
		'post_type'   => 'page',
	] );

	if ( ! empty( $pages ) ) {
		$urls[] = get_permalink( $pages[0] );
	}

	var_dump( $urls );

	die;
} );