[PHP] BB Code

[john tindell]

This code will match the tags and format them.

Custom tags can be added to the array called $tags, in the format


tag name => style information

eg

'greentext' => 'color: green;'

using the new tag

Some text



Heres the code.

<?

function MATags2($string)
{
$tags = array(
'b' => 'font-weight:bold;',
'u' => 'text-decoration: underline;',
'i' => 'font-style: italic;',
'small' => 'font-size:10px;',
'large' => 'font-size:16px;',
'hb' => 'font-weight:bold;font-size:16px;',
'hu' => 'text-decoration: underline;font-size:16px;',
'hbu' => 'font-weight:bold;text-decoration: underline;font-size:16px;',
'h' => 'font-size:16px;',
'c' => 'text-align:center;',
'l' => 'text-aligb:left;',
'r' => 'text-align:right;');


foreach($tags as $tag =>$val)
{
$list .= $tag . "|";
}
$list = substr($list,0,strlen($list)-1);

$pattern = '#\[('. $list .')\].*?\[\/('. $list .')\]#si';

$match_count = preg_match_all($pattern,$string,$array);

foreach($array[0] as $match)
{
$before_replace = $match;
$after_replace = $match;
$style = "";
$inline = true;
foreach($tags as $tag => $replace)
{
if(preg_match('#\['.$tag.'\]#',$before_replace))
{
$style .= $replace . ' ';
$after_replace = str_replace("[" . $tag . "]","",$after_replace);
$after_replace = str_replace("[/" . $tag . "]","",$after_replace);
if($tag == 'c' || $tag == 'l' || $tag == 'r')
{
$inline = false;
}
}
}
if($inline)
{
$after_replace = "<span style=\"$style\">$after_replace</span>";
}
else
{
$after_replace = "</p><div style=\"$style\">$after_replace</div><p>";
}
$string = str_replace($before_replace,$after_replace,$string);
//clean up any tags no found

}
foreach($tags as $tag => $replace)
{
$string = str_replace("[" . $tag . "]","",$string);
$string = str_replace("[/" . $tag . "]","",$string);
}
return $string;
}
function MAURL($text)
{
$pattern = '#\[(small|large)\].*?\[\/(small|large)\]#si';

if(preg_match_all($pattern,$text,$array))
{
foreach($array[0] as $match)
{
$before_replace = $match;
$after_replace = $before_replace;

$url_pattern = '#\[(email|url)(=.*?|)\](.*?)\[\/(email|url)\]#';
$count = 0;
if(preg_match_all($url_pattern,$after_replace,$url_array))
{
foreach($url_array[0] as $url_match)
{
if(preg_match('/large/',$after_replace))
{
$style = "font-size:16px;";

}
elseif(preg_match('/small/',$after_replace))
{
$style = "font-size:10px;";
}
if($url_array[1][$count] == "url")
{
$after_replace = preg_replace('/\[url\](.*?)\[\/url\]/sim','<a style="' . $style . '" href="\\1">\\1</a>',$after_replace);
$after_replace = preg_replace('/\(.*?)\[\/url\]/sim','<a style="' . $style . '" href="\\1">\\2</a>',$after_replace);
}
elseif($url_array[1][$count] == "email")
{
$after_replace = preg_replace('/\[email\](.*?)\[\/email\]/sim','<a style="' . $style . '" href="mailto:\\1">\\1</a>',$after_replace);
$after_replace = preg_replace('/\[email=(.*?)\](.*?)\[\/email\]/sim','<a style="' . $style . '" href="mailto:\\1">\\2</a>',$after_replace);
}
$text = str_replace($before_replace,$after_replace,$text);
$before_replace = $after_replace;
$count++;
}
}
}
}

return $text;
}
function Formatcode_List($text)
{
$match_count = preg_match_all("#\(.*?)\#si", $text, $matches);
for ($i = 0; $i < $match_count; $i++){
$before_replace = $matches[1][$i];
$after_replace = $matches[1][$i];
$temp = preg_split('/\[\*\]/',$before_replace);

array_shift($temp);

foreach($temp as $t)
{
$t = trim($t);
if($t != null)
{
$out .= "<li>". nl2br( $t ) . "</li>\n";
}
}
$after_replace = $out;

$str_to_match = "" . $before_replace . "";

$replacement = $code_start_html;
$replacement .= $after_replace;
$replacement .= $code_end_html;

$text = str_replace($str_to_match,"<ul>" . $replacement . "</ul>", $text);
}
$text = str_replace("", $code_start_html, $text);
$text = str_replace("", $code_end_html, $text);
return $text;
}

function MATags($text)
{
$text = nl2br($text);

$text = MAURL($text);
$text = MATags2($text);

$text = preg_replace('/\[img=(.*?)\]/sim','<img src="\\1" alt="Article Image"/>',$text);

$text = preg_replace('/\[url\](.*?)\[\/url\]/sim','<a href="\\1">\\1</a>',$text);
$text = preg_replace('/\[url=(.*?)\](.*?)\[\/url\]/sim','<a href="\\1">\\2</a>',$text);

$text = preg_replace('/\[email\](.*?)\[\/email\]/sim','<a href="mailto:\\1">\\1</a>',$text);
$text = preg_replace('/\[email=(.*?)\](.*?)\[\/email\]/sim','<a href="mailto:\\1">\\2</a>',$text);

$text = Formatcode_List($text);


return $text;
}
?>


Here is an example of the code being used: test.php ((.*?)\)

Heres a list of the tags and what the output it like, without extra CSS being applied to them.

[url]http://www.mindlessant.co.uk/articlecode.php

[pipwilky]

hi john,
I have not started to lern PHP yet and just wanted to see what its capible of, so i tryed to download "test.php" and my pc can not reconize the file type ".php" have you any idea how i can veiw the file?.

P.S And do you know any good PHP tutorails esspecialy on installing PHP?



thanks pip

[john tindell]

Installing PHP, MySql and Apache on Windows (http://www.vbforums.com/showthread.php?t=330825) written by VisualAd great tutorial to get you started using PHP and MySQL

[XRsTX]

You can use notepad, but I recommend this awesome HTML Editor:

Chami HTML-Kit (http://www.chami.com/)

[akkaj]

hi john,

Download the "test.php", thanks to a great, everything works, everything is good.