Crafting HTML elements from dynamic PHP data - php

Question

I apologise for the potentially nebulous title, but I hope that the question will clarify why I've called it that.
I've gotten into webdev from UI design/dev so I'm finding the programming and design aspects fairly easy to handle. However, I'm not used to using three/four different languages with a fair amount of overlap to do a single thing.
In this case, I've written up a PHP script to pull the latest $n tweets from $x user. Currently I'm loading the Twitter PHP via jQuery, crafting the HTML for the tweet in PHP, echoing in the PHP, this is then plopped into a timeline element in the jQuery's callback function.
This way of doing it seems a bit hacky? I was just hoping someone would be able to point me towards another way, or at least waylay my concerns regarding this method.
Here's some Code:
HTML:
<section id="twitterContainer">
<section id="glitchTimeline" class="timeline">
<!--Twitter articles go here-->
</section>
</section>
Javascript:
function getTweets(n,user)
{
//This is run when the page is loaded
//Will be changing this to an ajax call later, aware that it's a bit silly as is.
$('<article class="twitterPost">').load("http://xxxxxxxxx.com/php/index.php?user="+user+"&count="+n, function(data){
$(this).appendTo("#glitchTimeline");
});
}
PHP:
(This is called once the twitter API stuff has come back)
function craftTweet($jsonStr)
{
$json = json_decode($jsonStr);
for($i = 0; $i<count($json); $i++)
{
echo '<img class="twitterAvatar" src=' . $json[$i]->user->profile_image_url .' alt=' . $json[$i]->user->screen_name .' width="48">';
echo '<div class="tweetText">';
echo ' <b>' . $json[$i]->user->screen_name .'</b><span>#' . $json[$i]->user->screen_name . '</span><span> </span>';
echo ' <p>' . $json[$i]->text . '</p>';
echo ' <img class="twitterIconFav" src="img/utils/transBackground.png">';
echo ' <img class="twitterIconRetweet" src="img/utils/transBackground.png">';
echo ' <img class="twitterIconReply" src="img/utils/transBackground.png">';
echo ' <div class="clearfix"> </div>';
echo '</div>';
}
}