html_tag = array ('p', 'div', 'h', 'span', 'strong', 'ul', 'ol', 'li', 'table', 'tr', 'tbody', 'dl', 'dt', 'dd'); $this->html_end_tag = array ('/p', '/div', '/h', '/span', '/strong', '/ul', '/ol', '/li', '/table', '/tr', '/tbody', '/dl', '/dt', '/dd'); $this->content = ''; //临时内容存储器 $this->data = array(); //内容存储 } /** * 处理并返回字符串 * * @param string $content 待处理的字符串 * @param intval $maxwords 每页最大字符数。去除HTML标记后字符数 * @return 处理后的字符串 */ public function get_data($content = '', $maxwords = 10000) { if (!$content) return ''; $this->data = array(); $this->content = ''; //exit($maxwords); $this->surplus = $maxwords; //开始时将剩余字符设置为最大 //判断是否存在html标记，不存在直接按字符数分页；如果存在HTML标记，需要补全缺失的HTML标记 if (strpos($content, '<')!==false) { $content_arr = explode('<', $content); //将字符串按‘<’分割成数组 $this->total = count($content_arr); //计算数组值的个数，便于计算是否执行到字符串的尾部 foreach ($content_arr as $t => $c) { if ($c) { $s = strtolower($c); //大小写不区分 //$isadd = 0; if ((strpos($c, ' ')!==false) && (strpos($c, '>')===false)) { $min_point = intval(strpos($c, ' ')); } elseif ((strpos($c, ' ')===false) && (strpos($c, '>')!==false)) { $min_point = intval(strpos($c, '>')); } elseif ((strpos($c, ' ')!==false) && (strpos($c, '>')!==false)) { $min_point = min(intval(strpos($c, ' ')), intval(strpos($c, '>'))); } $find = substr($c, 0, $min_point); //if ($t>26) echo $s.'{}'.$find.'
'; //preg_match('/(.*)([^>|\s])/i', $c, $matches); if (in_array(strtolower($find), $this->html_tag)) { $str = '<'.$c; $this->bottonitems[$t] = ''; //属于定义的HTML范围，将结束标记存入补全的结尾数组 if(preg_match('/<'.$find.'(.*)>/i', $str, $match)) { $this->additems[$t] = $match[0]; //匹配出开始标记，存入补全的开始数组 } $this->separate_content($str, $maxwords, $match[0], $t); //加入返回字符串中 } elseif (in_array(strtolower($find), $this->html_end_tag)) { //判断是否属于定义的HTML结尾标记 ksort($this->bottonitems); ksort($this->additems); if (is_array($this->bottonitems) && !empty($this->bottonitems)) array_pop($this->bottonitems); //当属于是，将开始和结尾的补全数组取消一个 if (is_array($this->additems) && !empty($this->additems)) array_pop($this->additems); $str = '<'.$c; $this->separate_content($str, $maxwords, '', $t); //加入返回字符串中 } else { if($t==0){ $tag = $c;//第一个不可能有< }else{ $tag = '<'.$c; } if ($this->surplus >= 0) { $this->surplus = $this->surplus-strlen(strip_tags($tag)); if ($this->surplus<0) { $this->surplus = 0; } } $this->content .= $tag; //不在定义的HTML标记范围，则将其追加到返回字符串中 if (intval($t+1) == $this->total) { //判断是否还有剩余字符 $this->content .= $this->bottonitem(); $this->data[] = $this->content; } } } } } else { $this->content .= $this->separate_text($content, $maxwords); //纯文字时 } return implode('[page]', $this->data); } /** * 处理纯文本数据 * @param string $str 每条数据 * @param intval $max 每页的最大字符 */ private function separate_text($str = '', $max){ $str = strip_tags($str); $total = ceil(strlen($str)/$max); $encoding = 'utf-8'; if(strtolower(CHARSET)=='gbk') $encoding = 'gbk'; if(function_exists("mb_strcut")){ for ( $i=0; $i < $total; $i++ ) { $this->data[] =mb_strcut($str,$i*$max,$max,$encoding); } } return true; } /** * 处理每条数据 * @param string $str 每条数据 * @param intval $max 每页的最大字符 * @param string $tag HTML标记 * @param intval $t 处理第几个数组,方便判断是否到字符串的末尾 * @param intval $n 处理的次数 * @param intval $total 总共的次数，防止死循环 * @return boolen */ private function separate_content($str = '', $max, $tag = '', $t = 0, $n = 1, $total = 0) { $html = $str; $str = strip_tags($str); if ($str) $str = @str_replace(array('　'), '', $str); if ($str) { if ($n == 1) { $total = ceil((strlen($str)-$this->surplus)/$max)+1; } if ($total<$n) { return true; } else { $n++; } if (strlen($str)>$this->surplus) { //当前字符数超过最大分页数时 $remove_str = str_cut($str, $this->surplus, ''); $this->content .= $tag.$remove_str; //连同标记加入返回字符串 $this->content .= $this->bottonitem(); //补全尾部标记 $this->data[] = $this->content; //将临时的内容放入数组中 $this->content = ''; //设置为空 $this->content .= $this->additem(); //补全开始标记 $str = str_replace($remove_str, '', $str); //去除已加入 $this->surplus = $max; return $this->separate_content($str, $max, '', $t, $n, $total); //判断剩余字符 } elseif (strlen($str)==$this->surplus) { //当前字符刚好等于时(彩票几率) $this->content .= $html; $this->content .= $this->bottonitem(); if (intval($t+1) != $this->total) { //判断是否还有剩余字符 $this->data[] = $this->content; //将临时的内容放入数组中 $this->content = ''; //设置为空 $this->content .= $this->additem(); } $this->surplus = $max; } else { //当前字符数少于最大分页数 $this->content .= $html; if (intval($t+1) == $this->total) { //判断是否还有剩余字符 $this->content .= $this->bottonitem(); $this->data[] = $this->content; } $this->surplus = $this->surplus-strlen($str); } } else { $this->content .= $html; if ($this->surplus == 0) { $this->content .= $this->bottonitem(); if (intval($t+1) != $this->total) { //判断是否还有剩余字符 $this->data[] = $this->content; //将临时的内容放入数组中 $this->content = ''; //设置为空 $this->surplus = $max; $this->content .= $this->additem(); } } if (intval($t+1) == $this->total) { //判断是否还有剩余字符 $this->content .= $this->bottonitem(); $this->data[] = $this->content; } } if ($t==($this->total-1)) { $pop_arr = array_pop($this->data); if ($pop = strip_tags($pop_arr)) { $this->data[] = $pop_arr; } } return true; } /** * 补全开始HTML标记 */ private function additem() { $content = ''; if (is_array($this->additems) && !empty($this->additems)) { ksort($this->additems); foreach ($this->additems as $add) { $content .= $add; } } return $content; } /** * 补全结尾HTML标记 */ private function bottonitem() { $content = ''; if (is_array($this->bottonitems) && !empty($this->bottonitems)) { krsort($this->bottonitems); foreach ($this->bottonitems as $botton) { $content .= $botton; } } return $content; } } ?>