1、打開 include\newthread.inc.php
2、查找：
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3、在後面壹行添加：
if($subject == '' || $message == '') {
showmessage('post_sm_isnull');}
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* 添加提示信息（可選擇加與不加，加了後當發重復的帖子的時候會有溫馨提示增加用戶體驗）
1、打開：templates\default\messages.lang.php
2、查找：
//Refuse repeated post. Code by KaijuanStudio , Optimization by phytist
$repeated = 4; //設置防範重復發貼的級別，0＝關閉，1＝防範相同ID發布相同標題的新主題，2＝防範發布相同標題的新主題，3＝防範發布相同標題且內容部分相同的新主題，4=防止內容壹致或標題和部分內容相同的主題。
if($repeated == 1) {
$query = $db->query("SELECT tid, subject FROM {$tablepre}threads WHERE authorid='$discuz_uid' AND subject='$subject'");
if($db->num_rows($query)) {
$repeat = $db->fetch_array($query);
showmessage('post_repeated', 'index.php');
}
} elseif ($repeated == 2) {
$query = $db->query("SELECT tid, subject FROM {$tablepre}threads WHERE subject='$subject'");
if($db->num_rows($query)) {
$repeat = $db->fetch_array($query);
showmessage('post_repeated', 'index.php');
}
} elseif ($repeated == 3) {
$query = $db->query("SELECT tid, authorid, subject, message FROM {$tablepre}posts WHERE first='1' AND subject='$subject'");
if($db->num_rows($query)) {
$repeat = $db->fetch_array($query);
if($repeat['authorid'] == $discuz_uid) {
showmessage('post_repeated', 'index.php');
}
function SubString($str, $start, $len = 0xFFFFFFFF) {
if($start < 0) {
$start = strlen($str) + $start;
}
if($len < 0) {
$len = strlen($str) - $start + $len;
}
$tmp = '';
$result = '';
$strlen = strlen($str);
$begin = 0;
$subLen = 0;
for($i = 0; $i < $start + $len && $i < $strlen; $i++) {
if($i < $start) {
if(ord($str[$i]) >= 161 && ord($str[$i]) <= 247 && ord($str[$i+1]) >= 161 && ord($str[$i+1]) <= 254) $i++;
} else {
$begin=$i;
for(; $i<$start+$len && $i<$strlen; $i++) {
if(ord($str[$i]) >= 161 && ord($str[$i]) <= 247 && ord($str[$i+1])>=161 && ord($str[$i+1])<=254) $i++;
}
return substr($str,$begin,$i-$begin);
}
}
}
if(strlen($message) > 60) {
if(SubString($message, -100) == SubString($repeat['message'], -100) || SubString($message, 50, 100) == SubString($repeat['message'], 50, 100)) {
showmessage('post_repeated', 'index.php');
}
} else {
if($message == SubString($repeat['message'], 0, 60)) {
showmessage('post_repeated', 'index.php');
}
}
}
}elseif ($repeated == 4) {
$query = $db->query("SELECT tid, authorid, subject, message FROM {$tablepre}posts WHERE first='1' AND (subject='$subject' OR message='$message')");
if($db->num_rows($query)) {
$repeat = $db->fetch_array($query);
if($repeat['authorid'] == $discuz_uid) {
showmessage('post_repeated', 'index.php');
}
function SubString($str, $start, $len = 0xFFFFFFFF) {
if($start < 0) {
$start = strlen($str) + $start;
}
if($len < 0) {
$len = strlen($str) - $start + $len;
}
$tmp = '';
$result = '';
$strlen = strlen($str);
$begin = 0;
$subLen = 0;
for($i = 0; $i < $start + $len && $i < $strlen; $i++) {
if($i < $start) {
if(ord($str[$i]) >= 161 && ord($str[$i]) <= 247 && ord($str[$i+1]) >= 161 && ord($str[$i+1]) <= 254) $i++;
} else {
$begin=$i;
for(; $i<$start+$len && $i<$strlen; $i++) {
if(ord($str[$i]) >= 161 && ord($str[$i]) <= 247 && ord($str[$i+1])>=161 && ord($str[$i+1])<=254) $i++;
}
return substr($str,$begin,$i-$begin);
}
}
}
if(strlen($message) > 60) {
if(SubString($message, -100) == SubString($repeat['message'], -100) || SubString($message, 50, 100) == SubString($repeat['message'], 50, 100)) {
showmessage('post_repeated', 'index.php');
}
} else {
if($message == SubString($repeat['message'], 0, 60)) {
showmessage('post_repeated', 'index.php');
}
}
}
}
//Refuse repeated post. Code End
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'post_net_price_iszero' => '您的主題售價扣除積分交易稅後為 0，請返回修改。',
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3、在後面壹行添加
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'post_repeated' => '您所發布的主題或內容已存在:《<a href=\"viewthread.php?tid=$repeat[tid]\" target=\"_blank\">$repeat[subject]</a>》請勿重復發布。',