Miscellaneous
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<?
//BBCode handler
$bbend=array();
//replacement array
$smilie_url=URL.'img/bbcode/smilies/';
$bb_stag=array(
'[*]',
'[b]','[/b]',
'[i]','[/i]',
'[u]','[/u]',
'[/original]','[/align]','[/list]','[/nlist]','[/quote]','[/code]','[/color]','[/size]',
':lol:',':wink:',':roll:',':oops:',':idea:',
':|',':)',':(',':o',':x','8)',':?'
);
$bb_srep=array(
'<li>',
'<strong>','</strong>',
'<em>','</em>',
'<span style="text-decoration:underline">','</span>',
'</div>','</div>','</ul>','</ol>','</div>','</div>','</span>','</span>',
'<img src="'.$smilie_url.'neutral.gif" alt="Neutral"/>',
'<img src="'.$smilie_url.'smile.gif" alt="Smile"/>',
'<img src="'.$smilie_url.'sad.gif" alt="Sad"/>',
'<img src="'.$smilie_url.'surprised.gif" alt="Surprised"/>',
'<img src="'.$smilie_url.'mad.gif" alt="Mad"/>',
'<img src="'.$smilie_url.'cool.gif" alt="Cool"/>',
'<img src="'.$smilie_url.'confused.gif" alt="Confused"/>',
'<img src="'.$smilie_url.'lol.gif" alt="Laughing"/>',
'<img src="'.$smilie_url.'wink.gif" alt="Wink"/>',
'<img src="'.$smilie_url.'rolleyes.gif" alt="Roll eyes"/>',
'<img src="'.$smilie_url.'redface.gif" alt="Red face"/>',
'<img src="'.$smilie_url.'idea.gif" alt="Idea"/>'
);
$bb_ptag=array(
'/[img](.+?)[/img]/s',
'/[url](.+?)[/url]/s',
'/[url=(.+?)](.+?)[/url]/s',
'/[align=(left|center|right|justify)]/',
'/[quote]/',
'/[quote=(.+?)]/',
'/[code]/',
'/[original=(.+?)]/',
'/[color=(.+?)]/',
'/[size=(.+?)]/',
'/[list]/',
'/[nlist]/'
);
$bb_prep=array(
'<img src="$1" alt="Image"/>',
'<a href="$1">$1</a>',
'<a href="$1">$2</a>',
'<div align="$1">',
'<div class="quote"><div class="quote_t">Quote</div>',
'<div class="quote"><div class="quote_t">Quote <span class="quote_st">$1</span></div>',
'<div class="code"><div class="code_t">Code</div>',
'<div class="ori"><div class="ori_t">Original message from $1</div>',
'<span style="color:$1">',
'<span style="font-size:$1%">',
'<ul>',
'<ol>'
);
function bbcoder_safe($str)
{
global $bbend;
$bbend=array(); //reset
$str=trim($str); //clear spaces
//valid start end tag
$buf=preg_replace_callback("/[(.*?)]/",'bbcoder_close',$str);
$c=$p='';
while ($p=array_pop($bbend)) $c.='[/'.$p.']';
$buf.=$c;
return $buf;
}
function bbcoder_close($tag)
{
global $bbend;
$stok=array('*');
$t=explode('=',$tag[1]);
$n=strtolower(trim($t[0])); //tag
$p=strtolower(trim($t[1])); //param
if ($p) $p='='.$p;
//single tag
if (in_array($n,$stok)) return '['.$n.$p.']';
//block tag
if ($n[0]!='/') { array_push($bbend,$n); return '['.$n.$p.']'; } //open
else { //close
$n=ltrim($n,'/');
if (in_array($n,$bbend)) {
$c=$t='';
while ($t!=$n) { $t=array_pop($bbend); $c.='[/'.$t.']'; }
return $c;
}
else return '[/'.$n.']';
}
return '';
}
function bbcoder_parse($str)
{
global $bb_stag,$bb_srep,$bb_ptag,$bb_prep;
$str=nl2br(htmlentities($str));
$str=str_replace($bb_stag,$bb_srep,$str);
$str = preg_replace($bb_ptag,$bb_prep,$str);
return $str;
}
?>
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Usage Example
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user bbcoder_safe to validate and bbcoder_parse to display html version
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