Help to create a forum - BBCodes

[gaza165]

Hi all i am using BBCodes on my website to filter out html entities in my blog

 

http://www.thedesignmonkeys.co.uk/

 

Just like PHP Freaks does I want to be able to submit PHP Code to my blog. I want to know the class I need to construct for me to be able to have php code parsed from my blog and to have it coloured like PHP Freaks does using the [ code ] tags.

 

Not sure if this is easy or hard but any guidance would be very useful.

 

Thanks

 

Garry

 

 

 

[MasterACE14]

you can look into highlight_string(); for coloring the PHP code.

 

and look at preg_match(); for the [ code ] tags.

[gaza165]

How do i get it to distinguish the different parts of php??

 

Like how do i recognise if its a function or a variable or a string or a number etc??

 

<?php

$string = str_replace($string,"DFfsd","FDSfdsf");

echo $string  

?>

[DeanWhitehouse]

Made this if it helps?

<?php
if(isset($_POST['sub']))
{
$str = $_POST['test'];
$str = "<?php ".$str."\n?>";
highlight_string($str);
}
?>
<form method="post" action="">
<textarea name="test"></textarea><br>
<input type="submit" name="sub" value="Go">
</form>

[MasterACE14]

use preg_match(); look it up on php.net and take a look at the Regular Expressions tutorial on phpfreaks.com

[gaza165]

Can you guys tell me how i would get the string between two values such as below

 

[ code ]<? echo "hello"; ?>[/ code]

 

that will bring back

 

<? echo "hello"; ?>

[DeanWhitehouse]

<?php
function bbcode($code)
{
$code = preg_replace("/\[code\](.*?)\[\/code\]/","\\1",$code);
$code = highlight_string($code);
return $code;
}
echo bbcode("<?php echo 'hello';?>");
?>

[gaza165]

<?php
//select the blog based on the id
	$result = mysql_query("SELECT * FROM blog WHERE title = '$title'") or die(mysql_error());
	if(mysql_num_rows($result) == 0)
	{
		echo "<h1>The post you are looking for cannot be found--> <a href='./blog'>Back to Blog</a></h1>";//post not 		
		exit;
		}	

	while($row = mysql_fetch_array($result))
		{


		$body = str_replace("","'",$body);
		$body = str_replace('','"',$body);
		$body = str_replace('','"',$body);
		$body = str_replace("\'","'",$body);	
		$body = htmlentities($row['body']); 
		$_SESSION['blog_id'] = $row['id'];

			include_once "init.inc.php";
			require_once 'HTML/BBCodeParser.php';
			$options = @parse_ini_file('BBCodeParser.ini');
			$parser = new HTML_BBCodeParser($options);			

		$blog_id = $row['id'];

			echo "<div id='fullblog'>";
			echo "<h1>".$row['title']."</h1>";
			echo "<p class='date'>Posted by ".ucfirst($row['name'])." | ".date("F j, Y",strtotime($row['blog_created']))."</p>";

			$blog_title =  $row['title'];
			$_SESSION['title'] = $blog_title;

			// Pattern and pregmatches etc \\

			$pattern = "%http://\S+\.(?:jpe?g|png|gif)%i";
			$match = preg_match_all($pattern, $body, $matches,1);
			$gaz = $body;	
			$i = 0;	
				foreach($matches[0] as $url) {	
					$replacement = "%TOKEN".$i."%";	
					$gaz = preg_replace("@$url@", $replacement, $gaz, 1);
					$i++;
				}						

			$mpgpattern = "%http://\S+\.(?:mpg)%i";
			$mpgmatch = preg_match_all($mpgpattern, $body, $mpgmatches,1);	
			$m = 0;	
				foreach($mpgmatches[0] as $mpgurl) {	
					$replacement = "%MPG".$m."%";	
					$gaz = preg_replace("@$mpgurl@", $replacement, $gaz, 1);
					$m++;
				}

			$vidpattern = "%http://(?:\S+\.swf\b|\S+?youtube\S+)%";
			$vidmatch = preg_match_all($vidpattern, $gaz, $vidmatches);
			$g = 0;	
				foreach($vidmatches[0] as $vidurl) {

					$replace =  '%YOUTUBE'.$g.'%';
					$gaz = preg_replace($vidpattern,$replace, $gaz, 1);
					$g++;
				}


			$string = nl2br($gaz);
			$i= 0;

				foreach($matches[0] as $value) {
					$replace = "<img width='500px' height='300px' src='".$value."'></img>";
					$search = "%TOKEN".$i."%";
				    $string = str_replace($search, $replace, $string);
					$i++;
				}

			$e= 0;
				foreach($vidmatches[0] as $vidurl) {	

				$vidurl = substr($vidurl, 31);

					$search = "%YOUTUBE".$e."%";
					$replace = '<embed src="http://www.youtube.com/v/'.$vidurl.'" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350" />';
					$string = str_replace($search, $replace, $string);
					$e++;
				}

			$k= 0;
				foreach($mpgmatches[0] as $mpgurl) {				
					$search = "%MPG".$k."%";
					$replace = '<embed src="'.$mpgurl.'" type="movie/mpg" autoStart="true" width="425" height="350" /></embed>';
					$string = str_replace($search, $replace, $string);
					$e++;
				}

			function bbcode($code)
			{
			$code = preg_replace("/\[code\](.*?)\[\/code\]/","\\1",$code);
			$code = highlight_string($code);
			return $code;
			}

			echo "<p class='ajaxblog'>".bbcode($parser->qParse($string))."<p><br/>";



		}
?>

 

the code above shows how i output my blog onto the page. i use a whole set of preg_matches to search for things such as youtube videos, hyperlinks and images to display on the page.

 

My questions is..... how can i get select everything inide [ code ] [ /code ] and highlight it.#

 

Can someone look at my code and tell me where i am going wrong.

 

many thanks

 

Garry

[DeanWhitehouse]

Is my post invisible?

<?php
function bbcode($code)
{
$code = preg_replace("/\[code\](.*?)\[\/code\]/","\\1",$code);
return $code;
}
$str = bbcode("[code ]<?php echo 'hello'; ?>[/ code]");
echo highlight_string($str);
?>

Without the spaces

[gaza165]

Blade i did try and use your function but i must of implemented it wrong

 

i have created a simpler version of the output..

 

Can you tell me if this is correct??

 

<?php
while($row = mysql_fetch_array($result))
		{


		$body = htmlentities($row['body']); 
		$_SESSION['blog_id'] = $row['id'];
		$blog_id = $row['id'];

			include_once "init.inc.php";
			require_once 'HTML/BBCodeParser.php';
			$options = @parse_ini_file('BBCodeParser.ini');
			$parser = new HTML_BBCodeParser($options);			

			echo "<div id='fullblog'>";
			echo "<h1>".$row['title']."</h1>";
			echo "<p class='date'>Posted by ".ucfirst($row['name'])." | ".date("F j, Y",strtotime($row['blog_created']))."</p>";

			$blog_title =  $row['title'];
			$_SESSION['title'] = $blog_title;

			function bbcode($code)
				{
				$code = preg_replace("/\[code\](.*?)\[\/code\]/","\\1",$code);
				return $code;
				}
			$body = bbcode($body);



			echo "<p class='ajaxblog'>".highlight_string($body)."<p><br/>";



		}
?>

[DeanWhitehouse]

Looks correct, does it not work?

 

Also if it doesn't add error_reporting(E_ALL); to the top of the page

[gaza165]

http://www.thedesignmonkeys.co.uk/blog/tokenising_a_string_in_php

 

if you look at that and highlight the page as the text is absent from view for some reason..

 

this is what it gives me.... not sure why??

[DeanWhitehouse]

When you use the highlight_string function it highlights php code, and parses everything else black, so that's why the text is not visible without selecting it.

[gaza165]

Ok, so what do i need to do in order for this to work??

 

Thanks man this has helped me alot

 

Garry

[DeanWhitehouse]

Give the page a different colour ? Or maybe give the text a light background color?

[gaza165]

Im not quite sure what you mean...

 

if you look at

 

http://www.thedesignmonkeys.co.uk/blog/tokenising_a_string_in_php

 

i have changed teh bg colour to white but look how the post is displayed, it hasnt highlighted anything??

 

whats happening to this??

 

[DeanWhitehouse]

Are you using highlight on everything? As i think it works like htmlentities does and produces the ampersand for the tag.

[gaza165]

I just want to highlight the text inside the [ code ] tags??

 

Is it htmlentities that is messing it up?

[nadeemshafi9]

i would take a parser approach, insert everything into the DB as is inputed by the user, but pars it when outputed into the site, so echo message would be echo parse($message);

[Brian W]

You can get an idea of what is going on if you go to view source and find one of the divs that contain posted code. They use spans to change the colors. Now the process they use to do so is any ones guess and I'd say it is very complex.

A good start I think though would first get the text within " " or ' ' red and then out of all the other functions some how so that the word 'do' in a sting like 'I think i will do that' doesn't get turned green. lol

I'm not much help on the code thing because I still look at "regular statements" with blank stares half the time.

Good luck

[DeanWhitehouse]

I am having the same problem with it. I do not know why it isn't working, but i'm sure one of the experts(hint:DarkWater ) will come and solve it

[nadeemshafi9]

to highl;ight the test the parser would be insufficient, you would need to have a function instead thgat out puts the text not a parser wich would re format the text, your new function would be called out(), what it would do is take the message output everything until it gets to a

 take everything from there to 

then output that as highlight_string(the bit) and then the rest of the message would be outputed normaly.

 

substring ereg etc to get the bits of string etc

[nadeemshafi9]

i was asked to write a script to support markup within markup that was hard

[gaza165]

this is a toughy guys.

 

 

there must be a way to select just the text inside the [ code ] tags and highlight the php code.

 

anyone wanna fire any solutions my way.

[DeanWhitehouse]

Use arrays? Explode at the

 tags?