Uses twitteroauth PHP library to render latest tweets from a user's feed. https://github.com/abraham/twitteroauth

twitter-functions.php

<?php
/**
 * Wrap input inside a link to include in the body of the tweet.
 * 
 * @todo                more validation (URL?)
 * 
 * @param  string $url  URL to use as a link.
 * @param  string $text Text to wrap.
 * @return [type]       Formatted HTML link.
 */
function xx_tweet_link( $url = '', $text = '' ) {
	if ( empty( $url ) || empty( $text ) )
		return;

	return '<a class="tweet__body-link" href="' . esc_url( $url ) . '" target="_blank" rel="noopener noreferrer">' . esc_html( $text ) . '</a>';
}

/**
 * Format Tweets by adding links to any user mentions, hashtags,
 * media, or URL refs
 * 
 * @todo                      Test and refine validation.
 * 
 * @param  array  $arr        Array returned by the Twitter status object.
 * @param  string $type       The type of content to format.
 * @param  string $tweet_text Tweet text provided by the Twitter status object.
 * @return string             Formatted Tweet text including HTML links.
 */
function xx_format_tweet( $arr = [], $type = 'link', $tweet_text = '' ) {
	// Errrrrr
	if ( empty( $arr ) || count( $arr ) < 1 || empty( $tweet_text ) || ! is_object( $arr[0] ) )
		return $tweet_text;

	foreach ( $arr as $item ) {

		switch ( $type ) {
			case 'user' :
				$item    = $item->screen_name;
				$search  = "@$item";
				$replace = xx_tweet_link( "https://twitter.com/$item", "@$item" );
				break;
			case 'tag' :
				$item    = $item->text;
				$search  = "#$item";
				$replace = xx_tweet_link( "https://twitter.com/hashtag/$item?src=hash", "#$item" );
				break;
			default :
				$item    = $item->url;
				$search  = $item;
				$replace = xx_tweet_link( 'https://' . str_replace( [ 'https://', 'http://' ], '', $item ), $item );
				break;
		}

		return str_replace( $search, $replace, $tweet_text );

	}
}

/**
 * Format and render the Tweet text to the screen
 *
 * @param  string $handle     Twitter handle to use.
 * @param  string $tweet_text Tweet text provided by the Twitter status object.
 * @param  array  $links      URLs returned by the Twitter status object.
 * @param  array  $hashtags   Hashtags returned by the Twitter status object.
 * @param  array  $users      User mentions returned by the Twitter status object.
 * @param  array  $media      Media links returned by the Twitter status object.
 */
function xx_tweet( $hanlde = 'TheNameIsChance', $tweet_text = '', $links = [], $hashtags = [], $users = [], $media = [] ) {
	// @todo Validate some more here
	if ( empty( $tweet_text ) ) {
		return;
	}
	
	// May be a better DRY way to do this
	// Seems like a lot of looping - might not be most performant method
	$tweet_text = esc_html( $tweet_text );
	$tweet_text = xx_format_tweet( $links, 'link', $tweet_text );
	$tweet_text = xx_format_tweet( $media, 'link', $tweet_text );
	$tweet_text = xx_format_tweet( $hashtags, 'tag', $tweet_text );
	$tweet_text = xx_format_tweet( $users, 'user', $tweet_text );

	?>

	<article class="tweet">
		<h3 class="tweet__author-handle"><?php echo esc_html( "@$handle" ); ?></h3>
		<p class="tweet__body"><?php echo $tweet_text; ?></p>
	</article>

	<?php
}

twitter-template.php

<?php
$twitter_handle = 'TheNameIsChance';

require_once 'twitteroauth.php';
$statuses = $connection->get( 'statuses/user_timeline', array(
	'count'           => 2,
	'exclude_replies' => TRUE,
	'screen_name'     => $twitter_handle,
) );

if ( ! empty( statuses ) ) {
	echo '<section class="news__tweets">';
	foreach ( $statuses as $status ) {
		echo xx_tweet(
			$twitter_handle,
			$status->text,
			$status->entities->urls,
			$status->entities->hashtags,
			$status->entities->user_mentions,
			$status->entities->media
		);
	}
	echo '</section>';
}

twitteroauth.php

<?php
// Download the library then require it
// @link https://github.com/abraham/twitteroauth
require 'lib/twitteroauth/autoload.php';

use Abraham\TwitterOAuth\TwitterOAuth;

// First, create an app on Twitter and get your keys 
// @link https://apps.twitter.com/
define( CONSUMER_KEY, '[KEY GOES HERE]' );
define( CONSUMER_SECRET, '[KEY GOES HERE]' );

$connection = new TwitterOAuth( CONSUMER_KEY, CONSUMER_SECRET, $access_token, $access_token_secret );
$content = $connection->get( 'account/verify_credentials' );