Highlighting code and others

[PHPiSean]

Basically, I'm trying to take a string from the db and do two things.

[*]Prevent html from being processed as html (htmlspecialchars() i think)

[*]Recognize PHP code and highlight it.

 

This is a reply system much like what I'm typing right now. For example 2, I want to be able to do this

<?php
echo "hello";
?>

 

I've researched a little and found a function called highlight_php(). The problem I run into now is that I only want to highlight php when it is needed. I am stuck as to where to go next. My thoughts would be 2 regex functions, however I don't know which one to call first. Any suggestions? Everything is appreciated

[QuickOldCar]

http://php.net/manual/en/function.highlight-file.php

 

and also

http://www.php.net/manual/en/function.highlight-string.php

[ZulfadlyAshBurn]

use this

 

<?php

$tohighlight = "<?php
echo 'hello';
?>";

highlight_string($tohighlight);

?>

 

EDIT: i just reedited the code. this should do the trick.

[trq]

You will be much better off using a third party library such as Geshi.

[ZulfadlyAshBurn]

i would have to agree with thorpe even me myself uses geshi for my websites.

[PHPiSean]

Thanks for the replies. I see what you mean, however there won't always be code in the user's reply. I only want to highlight the code when there is code.

[trq]

So, you need to implement some form of bbocde similar to this boards

tags. If you google "php bbcode" you should find plenty of examples of how to do so.

[PHPiSean]

So, you need to implement some form of bbocde similar to this boards

tags. If you google "php bbcode" you should find plenty of examples of how to do so.

 

Right, Thanks. This is what I was looking for.