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bbcode_create
(PECL bbcode >= 0.9.0)
bbcode_create — Create a BBCode Resource
说明
$bbcode_initial_tags = NULL
] )This function returns a new BBCode Resource used to parse BBCode strings.
参数
-
bbcode_initial_tags -
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:
- flags optional - a flag set based on the BBCODE_FLAGS_* constants.
- type required - an int indicating the type of tag. Use the BBCODE_TYPE_* constants.
- open_tag required - the HTML replacement string for the open tag.
- close_tag required - the HTML replacement string for the close tag.
- default_arg optional - use this value as the default argument if none is provided and tag_type is of type OPTARG.
- content_handling optional - Gives the callback used for modification of the content. Object Oriented Notation supported only since 0.10.1 callback prototype is string name(string $content, string $argument)
- param_handling optional - Gives the callback used for modification of the argument. Object Oriented Notation supported only since 0.10.1 callback prototype is string name(string $content, string $argument)
- childs optional - List of accepted children for the tag. The format of the list is a comma separated string. If the list starts with ! it will be the list of rejected children for the tag.
- parent optional - List of accepted parents for the tag. The format of the list is a comma separated string.
返回值
Returns a BBCode_Container
范例
Example #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 , $text );
?> 以上例程会输出：
1 2 3 4 5 6 7 8 |
|
用户评论:
[#1] void at php dot net [2012-12-27 10:13:39]
I strongly recommend checking out this code (pure php implementation of the c library) :
If you can't install the pecl version, it avoids regexp and therefore is able to yield better results:
http://svn.php.net/viewvc/pecl/bbcode/trunk/bbcode.php?view=co
Xavier.
[#2] rothenbergxxx at gmail dot com [2009-09-04 10:58:49]
For those without the BBCode extension, here's a relatively elegant function to do the trick.
Keep in mind that if you're using XHTML and one of your users tries to overlap lags <b>Like <i>so</b></i>, it will invalidate your markup. Still working on an expression for this.
<?php
function bb_parse($string) {
$tags = 'b|i|size|color|center|quote|url|img';
while (preg_match_all('`\[('.$tags.')=?(.*?)\](.+?)\[/\1\]`', $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. Plus, contains another bugfix provided by (angad AT wootify DOT com) on 18-JUL-2011 to fix an issue where unsupported tags provided to the function could cause the script to time out.]