/**
* 截取字符串，用...代替
*/
function sub_str($str, $number)
{
if (strlen_utf8($str) > $number) {
return substr_utf8($str, 0, $number) . '...';
}
return $str;
}
public function submitmsg()
{
Load('extend');
if ($_SESSION['verify'] != md5($_POST['verify'])) {
$this->error('验证码错误！');
} elseif (strlen_utf8($_POST['content']) > 200 || strlen_utf8($_POST['content']) < 10) {
$this->error("留言内容不能少于10字，不能超过200字！");
} else {
$data = $_POST;
$Message = D("Message");
$data['clientip'] = get_client_ip();
$data['postdate'] = time();
if ($Message->Create()) {
if ($Message->add($data)) {
$this->assign("jumpUrl", "__URL__");
$this->success("留言成功！");
} else {
$this->error("留言失败！");
}
} else {
$this->error($Message->getError());
}
}
}
/**
+----------------------------------------------------------
* 字符串截取，支持中文和其他编码
+----------------------------------------------------------
* @static
* @access public
+----------------------------------------------------------
* @param string $str 需要转换的字符串
* @param string $start 开始位置
* @param string $length 截取长度
* @param string $charset 编码格式
* @param string $suffix 截断显示字符
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
function msubstr($str, $start = 0, $length, $charset = "utf-8", $suffix = true)
{
$str = strip_tags($str, '');
// Fengzi change at 2010.1.30
if (is_utf8($str) && strlen_utf8($str) <= $length) {
return $str;
}
// Fengzi change at 2010.3.25
if (function_exists("mb_substr")) {
return mb_substr($str, $start, $length, $charset) . "...";
} elseif (function_exists('iconv_substr')) {
return iconv_substr($str, $start, $length, $charset) . "...";
}
$re['utf-8'] = "/[-]|[�-�][�-�]|[�-�][�-�]{2}|[�-�][�-�]{3}/";
$re['gb2312'] = "/[-]|[�-�][�-�]/";
$re['gbk'] = "/[-]|[�-�][@-�]/";
$re['big5'] = "/[-]|[�-�]([@-~]|�-�])/";
preg_match_all($re[$charset], $str, $match);
$slice = join("", array_slice($match[0], $start, $length));
if ($suffix) {
return $slice . "...";
}
return $slice;
}
function truncate($text, $length = 200, $ending = '...', $exact = true, $considerHtml = true)
{
if ($considerHtml) {
// if the plain text is shorter than the maximum length, return the whole text
if (strlen_utf8(preg_replace('/<.*?>/u', '', $text)) <= $length) {
return $text;
}
// splits all html-tags to scanable lines
preg_match_all('/(<.+?>)?([^<>]*)/su', $text, $lines, PREG_SET_ORDER);
$total_length = strlen_utf8($ending);
$open_tags = array();
$truncate = '';
foreach ($lines as $line_matchings) {
// if there is any html-tag in this line, handle it and add it (uncounted) to the output
if (!empty($line_matchings[1])) {
// if it's an "empty element" with or without xhtml-conform closing slash (f.e. <br/>)
if (preg_match('/^<(\\s*.+?\\/\\s*|\\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\\s.+?)?)>$/isu', $line_matchings[1])) {
// do nothing
} else {
if (preg_match('/^<\\s*\\/([^\\s]+?)\\s*>$/us', $line_matchings[1], $tag_matchings)) {
// delete tag from $open_tags list
$pos = array_search($tag_matchings[1], $open_tags);
if ($pos !== false) {
unset($open_tags[$pos]);
}
} else {
if (preg_match('/^<\\s*([^\\s>!]+).*?>$/su', $line_matchings[1], $tag_matchings)) {
// add tag to the beginning of $open_tags list
array_unshift($open_tags, strtolower($tag_matchings[1]));
}
}
}
// add html-tag to $truncate'd text
$truncate .= $line_matchings[1];
}
// calculate the length of the plain text part of the line; handle entities as one character
$content_length = strlen_utf8(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/ui', ' ', $line_matchings[2]));
if ($total_length + $content_length > $length) {
// the number of characters which are left
$left = $length - $total_length;
$entities_length = 0;
// search for html entities
if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/iu', $line_matchings[2], $entities, PREG_OFFSET_CAPTURE)) {
// calculate the real length of all entities in the legal range
foreach ($entities[0] as $entity) {
if ($entity[1] + 1 - $entities_length <= $left) {
$left--;
$entities_length += strlen_utf8($entity[0]);
} else {
// no more characters left
break;
}
}
}
$truncate .= substr_utf8($line_matchings[2], 0, $left + $entities_length);
// maximum lenght is reached, so get off the loop
break;
} else {
$truncate .= $line_matchings[2];
$total_length += $content_length;
}
// if the maximum length is reached, get off the loop
if ($total_length >= $length) {
break;
}
}
} else {
if (strlen_utf8($text) <= $length) {
return $text;
} else {
$truncate = substr_utf8($text, 0, $length - strlen_utf8($ending));
}
}
// if the words shouldn't be cut in the middle...
if (!$exact) {
// ...search the last occurance of a space...
$spacepos = strrpos($truncate, ' ');
if (isset($spacepos)) {
// ...and cut the text in this position
$truncate = substr_utf8($truncate, 0, $spacepos);
}
}
// add the defined ending to the text
$truncate .= $ending;
if ($considerHtml) {
// close all unclosed html-tags
foreach ($open_tags as $tag) {
$truncate .= '</' . $tag . '>';
}
}
return $truncate;
}
// OUTPUT JSON
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
// Date in the past
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
// always modified
header("Cache-Control: no-cache, must-revalidate");
// HTTP/1.1
header("Pragma: no-cache");
// HTTP/1.0
header("Content-Type: application/json");
echo json_encode(array('user_exists' => (bool) $user_exists));
exit;
} elseif ($task == "suggest_field") {
// GET USER INPUT AND LIMIT
$input = strtolower($_GET['input']);
$len = strlen_utf8($input);
$limit = isset($_GET['limit']) ? (int) $_GET['limit'] : 20;
// GET OPTIONS FROM URL
$results = array();
$options = is_array($_POST['options']) ? $_POST['options'] : (is_array($_GET['options']) ? $_GET['options'] : array());
foreach ($options as $option_index => $option_value) {
if (strtolower(substr($option_value, 0, $len)) == $input) {
$results[] = array("id" => NULL, "value" => $option_value, "info" => $option_value, "photo" => NULL, "photo_width" => NULL);
}
}
// OUTPUT JSON
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
// Date in the past
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
// always modified
header("Cache-Control: no-cache, must-revalidate");
