phpBB convert bbcode to html

bbcodetohtml

<?php

$bbcode = file_get_contents("bbcode.txt");

function bbcodeToHtml($str, $convertBreaks=true) {

	$replace = array(
		// bold
		array(
			"pattern" => '/\[b:[a-zA-Z0-9]*\](.*)\[\/b:[a-zA-Z0-9]*\]/',
			"replace" => '<strong>$1</strong>'
		),
		// italic
		array(
			"pattern" => '/\[i:[a-zA-Z0-9]*\](.*)\[\/i:[a-zA-Z0-9]*\]/',
			"replace" => '<em>$1</em>'
		),
		// strike
		array(
			"pattern" => '/\[s:[a-zA-Z0-9]*\](.*)\[\/s:[a-zA-Z0-9]*\]/',
			"replace" => '<span class="strike">$1</span>'
		),
		// font size converts to h2
		array(
			"pattern" => '/\[size=[0-9]*:[a-zA-Z0-9]*\](.*)\[\/size:[a-zA-Z0-9]*\]/',
			"replace" => '<h2>$1</h2>'
		),
		// images
		array(
			"pattern" => '/\[img:[a-zA-Z0-9]*\](.*)\[\/img:[a-zA-Z0-9]*\]/',
			"replace" => '<img src="$1" alt="Diecast Cars, Hot Wheels, Matchbox" />'
		),
		// url-wrapped text
		array(
			"pattern" => '/\[url=(.*):[a-zA-Z0-9]*\](.*)\[\/url:[a-zA-Z0-9]*\]/',
			"replace" => '<a href="$1">$2</a>'
		),
		// straight url
		array(
			"pattern" => '/\[url:[a-zA-Z0-9]*\](.*)\[\/url:[a-zA-Z0-9]*\]/',
			"replace" => '<a href="$1">$1</a>'
		),
		// quote with name of original author
		array(
			"pattern" => '/\[quote="([a-zA-Z0-9]*)":[a-zA-Z0-9]*\](.*)\[\/quote:[a-zA-Z0-9]*\]/',
			"replace" => '<blockquote><strong>$1</strong>$2</blockquote>'
		),
		// removes non-emoticon smileys
		array(
			"pattern" => '/\<img src="\{SMILIES_PATH\}.*" alt=":[a-zA-Z0-9]*:" .*>/',
			"replace" => ''
		),
		// concert smiley icons into emoticons
		array(
			"pattern" => '/\<img src="\{SMILIES_PATH\}.*" alt="(.*)" .*>/',
			"replace" => '$1'
		),
		// removes color
		array(
			"pattern" => '/\[color=#[a-zA-Z0-9]*\](.*)\[\/color\]/',
			"replace" => '$1'
		),
		// catchall, strips any left over bbcode tags
		array(
			"pattern" => '/\[[a-zA-Z0-9]*:[a-zA-Z0-9]*\](.*)\[\/[a-zA-Z0-9]*:[a-zA-Z0-9]*\]/',
			"replace" => '$1'
		)
	);



	$patterns = array();
	$replaces = array();
	foreach ($replace as $regex) {
		$patterns[] = $regex["pattern"];
		$replaces[] = $regex["replace"];
	}

	$html = preg_replace($patterns, $replaces, $str);

	if ($convertBreaks) {
		return(nl2br($html));
	} else {
		return($html);
	}
}

echo bbcodeToHtml($bbcode);

?>