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(PECL bbcode >= 0.9.0)
bbcode_create — Create a BBCode Resource
This function returns a new BBCode Resource used to parse BBCode strings.
An associative array containing the tag names as keys and parameters required to correctly parse BBCode as their value. The following key/value pairs are supported:
Returns a BBCode_Container
Beispiel #1 bbcode_create() example
<?php
$arrayBBCode=array(
''=> array('type'=>BBCODE_TYPE_ROOT, 'childs'=>'!i'),
'i'=> array('type'=>BBCODE_TYPE_NOARG, 'open_tag'=>'<i>',
'close_tag'=>'</i>', 'childs'=>'b'),
'url'=> array('type'=>BBCODE_TYPE_OPTARG,
'open_tag'=>'<a href="{PARAM}">', 'close_tag'=>'</a>',
'default_arg'=>'{CONTENT}',
'childs'=>'b,i'),
'img'=> array('type'=>BBCODE_TYPE_NOARG,
'open_tag'=>'<img src="', 'close_tag'=>'" />',
'childs'=>''),
'b'=> array('type'=>BBCODE_TYPE_NOARG, 'open_tag'=>'<b>',
'close_tag'=>'</b>'),
);
$text=<<<EOF
[b]Bold Text[/b]
[i]Italic Text[/i]
[url]http://www.php.net/[/url]
[url=http://pecl.php.net/][b]Content Text[/b][/url]
[img]http://static.php.net/www.php.net/images/php.gif[/img]
[url=http://www.php.net/]
[img]http://static.php.net/www.php.net/images/php.gif[/img]
[/url]
EOF;
$BBHandler=bbcode_create($arrayBBCode);
echo bbcode_parse($BBHandler,$text);
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
<b>Bold Text</b> [i]Italic Text[/i] <a href="http://www.php.net/">http://www.php.net/</a> <a href="http://pecl.php.net/"><b>Content Text</b></a> <img src="http://static.php.net/www.php.net/images/php.gif" /> <a href="http://www.php.net/"> [img]http://static.php.net/www.php.net/images/php.gif[/img] </a>
For those without the BBCode extension, here's a relatively elegant function to do the trick.
Keep in mind that if you're using XHTML and one of your users tries to overlap lags <b>Like <i>so</b></i>, it will invalidate your markup. Still working on an expression for this.
<?php
function bb_parse($string) {
while (preg_match_all('`\[(.+?)=?(.*?)\](.+?)\[/\1\]`', $string, $matches)) foreach ($matches[0] as $key => $match) {
list($tag, $param, $innertext) = array($matches[1][$key], $matches[2][$key], $matches[3][$key]);
switch ($tag) {
case 'b': $replacement = "<strong>$innertext</strong>"; break;
case 'i': $replacement = "<em>$innertext</em>"; break;
case 'size': $replacement = "<span style=\"font-size: $param;\">$innertext</span>"; break;
case 'color': $replacement = "<span style=\"color: $param;\">$innertext</span>"; break;
case 'center': $replacement = "<div class=\"centered\">$innertext</div>"; break;
case 'quote': $replacement = "<blockquote>$innertext</blockquote>" . $param? "<cite>$param</cite>" : ''; break;
case 'url': $replacement = '<a href="' . ($param? $param : $innertext) . "\">$innertext</a>"; break;
case 'img':
list($width, $height) = preg_split('`[Xx]`', $param);
$replacement = "<img src=\"$innertext\" " . (is_numeric($width)? "width=\"$width\" " : '') . (is_numeric($height)? "height=\"$height\" " : '') . '/>';
break;
case 'video':
$videourl = parse_url($innertext);
parse_str($videourl['query'], $videoquery);
if (strpos($videourl['host'], 'youtube.com') !== FALSE) $replacement = '<embed src="http://www.youtube.com/v/' . $videoquery['v'] . '" type="application/x-shockwave-flash" width="425" height="344"></embed>';
if (strpos($videourl['host'], 'google.com') !== FALSE) $replacement = '<embed src="http://video.google.com/googleplayer.swf?docid=' . $videoquery['docid'] . '" width="400" height="326" type="application/x-shockwave-flash"></embed>';
break;
}
$string = str_replace($match, $replacement, $string);
}
return $string;
}
?>
[EDIT BY danbrown AT php DOT net: Contains a bugfix provided by (ramonvandam AT gmail DOT com) on 04-SEP-09 to address an improperly-defined parameter. Also contains a bugfix provided by (pompei2 AT gmail DOT com) on 15-FEB-10 to address improperly-closed tags.]
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