What do you mean? PHP LOVES HTML! :-)
<?php
echo '<b>I am bold</b>';
echo '<b>I\'m bold</b>';
?>
All works perfectly. One can break in and out of PHP/HTML too so pretend the following is all one page :
// -- begin: watch php and html wage war -- //
<?php
echo 'hi <b>friend</b>';
?>
<br>What is up?!!!!
<br>I am doing well.
<?php
echo 'hi again <br><br>';
?>
Now this is html but I want php so <?php echo 'ahh, phew, back in php where everything is so comfortable and nice'; ?> doh! back in html but <?php echo ' ahh, php so nice'; ?> but html isn't so bad either. Okay, I am getting <?php print '<b>carried away here</b>'; ?> so will stop now :-)
// -- End demonstration -- //
Btw, I use ; as habit but <?php echo 'this works just fine' ?> too as the ?> ends the statement, read about that here :
http://php.net/manual/en/language.basic-syntax.instruction-separation.php
And yes that is a seperate subject.