Обещанное решение проблем с некорректной обрезкой текста в блоках новостей и объявлений. Вариант не идеальный, но вероятность появления незакрытых тэгов и тому подобных HTML-ошибок уменьшается примерно в 10 раз.
Открыть portal/includes/functions.php
Найти
if (($text_length != 0) && (strlen($len_check) > $text_length))
{
$message = str_replace(array("\n", "\r"), array('<br />', "\n"), $row['post_text']);
$message = get_sub_taged_string($message, $row['bbcode_uid'], $maxlen);
$posts[$i]['striped'] = true;
}
Заменить на
if (($text_length != 0) && (utf8_strlen($len_check) > $text_length))
{
$message = trim_text($row['post_text'], $row['bbcode_uid'], $maxlen);
$posts[$i]['striped'] = true;
}
Найти
// fetch post for news & announce
Добавить перед
/**
* BBCode-safe truncating of text
*
* Originally from {@link http://www.phpbb.com/community/viewtopic.php?f=71&t=670335}
* slightly modified to trim at either the first found end line or space by EXreaction.
*
* Modified by Chris Smith to trim to a specified number of paragraphs and/or a maximum
* number of characters, and provide configurable stopping positions. Made some performance
* improvements as well.
*
* Just like phpBB3 this function doesn't support embedding BBCodes in BBCode parameters
* either except for [quote].
*
* @author fberci (http://www.phpbb.com/community/memberlist.php?mode=viewprofile&u=158767)
* @author EXreaction (http://www.phpbb.com/community/memberlist.php?mode=viewprofile&u=202401)
* @author Chris Smith <toonarmy@phpbb.com> (http://www.phpbb.com/community/memberlist.php?mode=viewprofile&u=108642)
* @param string $text Text containing BBCode tags to be truncated
* @param string $uid BBCode uid
* @param int $max_length Text length limit
* @param int $max_paragraphs Maximum number of paragraphs permitted
* @param array $stops Characters to stop max length search at
* @param string $replacement Replacment suffix for the removed text
* @param string $bitfield BBCode bitfield (optional)
* @param bool $enable_bbcode Whether BBCode is enabled (true by default)
* @return string Resulting trimmed text
*/
function trim_text($text, $uid, $max_length, $max_paragraphs = 0, $stops = array(' ', "\n"), $replacement = '…', $bitfield = '', $enable_bbcode = true)
{
$orig_text = $text;
if ($enable_bbcode)
{
static $custom_bbcodes = array();
// Get all custom bbcodes
if (empty($custom_bbcodes))
{
global $db;
$sql = 'SELECT bbcode_id, bbcode_tag, second_pass_match
FROM ' . BBCODES_TABLE;
$result = $db->sql_query($sql, 3600);
while ($row = $db->sql_fetchrow($result))
{
// There can be problems only with tags having an argument
if (substr($row['bbcode_tag'], -1, 1) == '=')
{
$custom_bbcodes[$row['bbcode_id']] = array('[' . $row['bbcode_tag'], ':' . $uid . ']', str_replace('$uid', $uid, $row['second_pass_match']));
}
}
$db->sql_freeresult($result);
}
}
$trimmed = false;
// Paragraph trimming
if ($max_paragraphs && $max_paragraphs < preg_match_all('#\n\s*\n#m', $text, $matches))
{
$find = $matches[0][$max_paragraphs - 1];
// Grab all the matches preceeding the paragraph to trim at, finds
// those that match the trim marker, sum them to skip over them.
$skip = sizeof(array_intersect(array_slice($matches[0], 0, $max_paragraphs - 1), array($find)));
$pos = 0;
do
{
$pos = utf8_strpos($text, $find, $pos + 1);
$skip--;
}
while ($skip >= 0);
$text = utf8_substr($text, 0, $pos);
$trimmed = true;
}
// First truncate the text
if ($max_length && utf8_strlen($text) > $max_length)
{
$pos = 0;
$length = 0;
if (!is_array($stops[0]))
{
$stops = array($stops);
}
foreach ($stops as $stop_group)
{
if (!is_array($stop_group))
{
continue;
}
foreach ($stop_group as $k => $v)
{
$find = (is_string($v)) ? $v : $k;
$include = is_bool($v) && $v;
if (($_pos = utf8_strpos(utf8_substr($text, $max_length), $find)) !== false)
{
if ($_pos < $pos || !$pos)
{
// This is a better find, it cuts the text shorter
$pos = $_pos;
$length = $include ? utf8_strlen($find) : 0;
}
}
}
if ($pos)
{
// Include the length of the search string if requested
$max_length += $pos + $length;
break;
}
}
// Trim off spaces, this will miss UTF8 spacers :(
$text = rtrim(utf8_substr($text, 0, $max_length));
$trimmed = true;
}
// No BBCode or no trimming return
if (!$enable_bbcode || !$trimmed)
{
return $text . ($trimmed ? $replacement : '');
}
// Some tags may contain spaces inside the tags themselves.
// If there is any tag that had been started but not ended
// cut the string off before it begins.
$unsafe_tags = array(
array('<', '>'),
array('[quote="', "":$uid]"), // 3rd parameter true here too for now
);
// If bitfield is given only check for those tags that are surely existing in the text
if (!empty($bitfield))
{
// Get all used tags
$bitfield = new bitfield($bitfield);
// isset() provides better performance
$bbcodes_set = array_flip($bitfield->get_all_set());
// Add custom BBCodes having a parameter and being used
// to the array of potential tags that can be cut apart.
foreach ($custom_bbcodes as $bbcode_id => $bbcode_tag)
{
if (isset($bbcodes_set[$bbcode_id]))
{
$unsafe_tags[] = $bbcode_tag;
}
}
}
// Else do the check for all possible tags
else
{
$unsafe_tags = array_merge($unsafe_tags, $custom_bbcodes);
}
// @todo Fix this block
foreach ($unsafe_tags as $tag)
{
if (($start_pos = strrpos($text, $tag[0])) > strrpos($text, $tag[1]))
{
$text = substr($text, 0, $start_pos);
}
}
$text = $text . $replacement;
// Get all of the BBCodes the text contains.
// If it does not contain any than just skip this step.
// Preg expression is borrowed from strip_bbcode()
if (preg_match_all("#\[(\/?)([a-z0-9_\*\+\-]+)(?:=(".*"|[^\]]*))?(?::[a-z])?(?:\:$uid)\]#", $text, $matches, PREG_PATTERN_ORDER) != 0)
{
$open_tags = array();
for ($i = 0, $size = sizeof($matches[0]); $i < $size; ++$i)
{
$bbcode_name = &$matches[2][$i];
$opening = ($matches[1][$i] == '/') ? false : true;
// If a new BBCode is opened add it to the array of open BBCodes
if ($opening)
{
$open_tags[] = array(
'name' => $bbcode_name,
'plus' => ($opening && $bbcode_name == 'list' && !empty($matches[3][$i])) ? ':o' : '',
);
}
// If a BBCode is closed remove it from the array of open BBCodes.
// As always only the last opened open tag can be closed,
// so we only need to remove the last element of the array.
else
{
array_pop($open_tags);
}
}
// Sort open BBCode tags so the most recently opened will be the first (because it has to be closed first)
krsort ($open_tags);
// Close remaining open BBCode tags
foreach ($open_tags as $tag)
{
$text .= '[/' . $tag['name'] . $tag['plus'] . ':' . $uid . ']';
}
}
return $text;
}
Функция trim_text() взята
отсюда, с незначительными изменениями.
).
