I decided to actually learn PHP I'm just doing some tutorials I found on YouTube.

So say I wanted to show some php code on my webpage without executing it.

Is there HTML tags I can put the PHP in to display the code. Or do I do it with PHP script.

And which way works best?

And just is there an HTML tag that is equivalent to the BB code?

PHP Code:

     <?php

$num = 1;

while ($num<=10)
{
echo "Loop $num <br />";

$num = $num + 1;
}

?>

This seems like a really stupid thing to not know.

So say I wanted to show some php code on my webpage without executing it.

Anything outside of the PHP tags (<?php ?>) is not going to be parsed.

Is there HTML tags I can put the PHP in to display the code. Or do I do it with PHP script.

PHP and HTML are completely distinct. The output of a PHP script is typically HTML code but not necessarily. If you want to display PHP code as HTML then just write it as HTML outside of the PHP tags:

PHP Code:

<?php
//this code will be parsed
$num = 1; 

while ($num<=10) 
{ 
echo "Loop $num <br />"; 

$num = $num + 1; 
}
?>
This will not:
<pre>
$num = 1; 

while ($num&lt;=10) 
{ 
     echo "Loop $num &lt;br /&gt;"; 

     $num = $num + 1; 
}
</pre>

The pre tag will maintain the formatting (tabs, newlines and whitespace). Notice that I replaced the wickets ( < and > ) with their html entities. You can use PHP to simplify this process:

PHP Code:

<?php
ob_start(); //start an output buffer
?>
$num = 1; 

while ($num<=10) 
{ 
echo "Loop $num <br />"; 

$num = $num + 1; 
}
<?php
$source = ob_get_clean(); //assign the content of the buffer to $source
echo '<pre>' .  htmlentities($source) . '</pre>'; //output $source with html entities
?>

Edit:
PHP also comes with a function that you can use to highlight source code:
http://us3.php.net/manual/en/functio...ght-string.php

Thanks for the info. Exactly what I was looking for. Much appreciated.

PHP Code:

<?php
highlight_string('<?php
    echo "hello";
?>');
?>

http://tycoontalk.freelancer.com/htm...tml#post294819

PHP Code:

<?php
highlight_string('<?php
    echo "hello";
?>');
?>

<code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php
<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #DD0000">"hello"</span><span style="color: #007700">;
<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code>

So, highlight_string will also strip special chars

Thanks for the help everybody