PS:对原文件的修改较大,程序中注释已经很详尽,这里就不多说了。
// header('Content-Type:text/html;charset=UTF-8');
//if(function_exists("mb_convert_encoding")){
// $tmp = checkAndTranslate("使用前请将该文件直接上传至论坛根目录", 0);
// header('Content-Type:text/html;charset=UTF-8');
// print($tmp);
//}else{
// print("NO");
//}
// exit("this.line=".__line__);
/*
文件名:locoyonline_for_discuz610.php
*使用前请将该文件直接上传至论坛根目录
*本文件为GBK编码;
*处理后导入数据库的编码为:utf-8;
*需要替换字符时,需把replace.txt复制到同目录下;
*/
//处理全局变量
//foreach($_POST as $key => $value){
//$$key = $value ;
//print($key.' = '.$value.'\n');
//}
//var_dump($_POST);
//exit('end-0');
// 需要插入的数据表
// 1.cdb_threads
// 2.cdb_rewardlog // ok 悬赏记录表
// 3.cdb_mythreads
// 4.cdb_posts
// 5.cdb_tags _update
// 6.cdb_threadtags
// 7.cdb_forums _update
// 8.cdb_members _update ok 更改悬赏表
//done end !
$user_list = file('./makeuser/username.txt');
// 随机发帖的用户名单,必须是已经注册的
// 关于批量注册用户名可以参考 Discuz 6.0+ 批量注册用户名
$user_list = array_map("curlAndCopy", $user_list);
function curlAndCopy($a){
return trim($a);
}
$replyusers = implode("|",$user_list);
//处理回复的格式
function trimAndCurl($str){
$str = preg_replace('/\n\s{5,}/','', $str , 1);
$str = trim($str);
$str = checkAndTranslate($str);
return $str;
}
function checkAndTranslate($mess, $if_replace =1, $in_char_type='GBK', $out_char_type='UTF-8'){
//if replace ?
if($if_replace){
$mess = curlAndReplace($mess);
}
//if chinese GBK ?
if(preg_match('/[\x80-\xff]./', $mess) ){
$mess = mb_convert_encoding($mess, $out_char_type, $in_char_type);
}
return addslashes($mess) ;
}
function curlAndReplace($message){
$replace_list = file('./makeuser/replace.txt');
foreach($replace_list as $item){
$item = preg_replace("/\s+/","||",$item);
$items = explode("||",$item);
$tmp = '';
$message = str_replace($items[0],$tmp,$message);
$message = str_replace($items[1],$items[0],$message);
$message = str_replace($tmp,$items[1],$message);
}
return $message;
}
define('CURSCRIPT', 'post');
define('NOROBOT', TRUE);
require_once './include/common.inc.php';
require_once DISCUZ_ROOT.'./include/post.func.php';
$_DTYPE = $checkoption = $optionlist = array();
if($typeid) {
threadtype_checkoption();
}
require_once DISCUZ_ROOT.'./include/discuzcode.func.php';
$navigation = $navtitle = $thread = '';
//这里是新添加的代码以,开始
if ( $lid "locoy" )
{
// die(验证密码错误);
}
//这里是添加的代码,结束,
//rq204,Q285576545,2008.7.29
$navigation = "» $forum[name] $navigation";
$navtitle = $navtitle.strip_tags($forum['name']).' - ';
if($forum['type'] == 'sub') {
$query = $db->query("SELECT name, fid FROM {$tablepre}forums WHERE fid='$forum[fup]'");
$fup = $db->fetch_array($query);
$navigation = "» $fup[name] $navigation";
$navtitle = $navtitle.strip_tags($fup['name']).' - ';
}
$special = empty($special) || !is_numeric($special) || $special 6 ? 0 : intval($special);
$allowpostattach = !empty($forum['allowpostattach']) || (!$forum['postattachperm'] && $allowpostattach) || ($forum['postattachperm'] && forumperm($forum['postattachperm']));
$attachextensions = $forum['attachextensions'] ? $forum['attachextensions'] : $attachextensions;
$enctype = $allowpostattach ? 'enctype="multipart/form-data"' : '';
$maxattachsize_kb = $maxattachsize / 1000;
$postcredits = $forum['postcredits'] ? $forum['postcredits'] : $creditspolicy['post'];
$replycredits = $forum['replycredits'] ? $forum['replycredits'] : $creditspolicy['reply'];
$digestcredits = $forum['digestcredits'] ? $forum['digestcredits'] : $creditspolicy['digest'];
$postattachcredits = $forum['postattachcredits'] ? $forum['postattachcredits'] : $creditspolicy['postattach'];
$maxprice = isset($extcredits[$creditstrans]) ? $maxprice : 0;
$extra = rawurlencode($extra);
$blogcheck = empty($isblog) && empty($addtoblog) ? '' : 'checked="checked"';
$notifycheck = empty($emailnotify) ? '' : 'checked="checked"';
$stickcheck = empty($sticktopic) ? '' : 'checked="checked"';
$digestcheck = empty($addtodigest) ? '' : 'checked="checked"';
$subject = isset($subject) ? dhtmlspecialchars(censor(trim($subject))) : '';
$message = isset($message) ? censor(trim($message)) : '';
$readperm = isset($readperm) ? intval($readperm) : 0;
$price = isset($price) ? intval($price) : 0;
$urloffcheck = $usesigcheck = $smileyoffcheck = $codeoffcheck = $htmloncheck = $emailcheck = '';
$seccodecheck = ($seccodestatus & 4) && (!$seccodedata['minposts'] || $posts $secqaacheck = $secqaa['status'][2] && (!$secqaa['minposts'] || $posts if($iscircle = $supe['status'] && $supe['circlestatus'] && $forum['status'] == 2) {
unset($forum['threadtypes']);
}
$allowpostpoll = $allowpost && $allowpostpoll && ($forum['allowpostspecial'] & 1);
$allowposttrade = $allowpost && $allowposttrade && ($forum['allowpostspecial'] & 2);
$allowpostreward = $allowpost && $allowpostreward && ($forum['allowpostspecial'] & 4) && isset($extcredits[$creditstrans]);
$allowpostactivity = $allowpost && $allowpostactivity && ($forum['allowpostspecial'] & 8);
$allowpostdebate = $allowpost && $allowpostdebate && ($forum['allowpostspecial'] & 16);
$allowpostvideo = $allowpost && $allowpostvideo && ($forum['allowpostspecial'] & 32) && $videoopen;
$allowanonymous = $forum['allowanonymous'] || $allowanonymous ? 1 : 0;
$editorid = 'posteditor';
$editoroptions = str_pad(decbin($editoroptions), 2, 0, STR_PAD_LEFT);
$editormode = $editormode == 2 ? $editoroptions{0} : $editormode;
$allowswitcheditor = $editoroptions{1};
$advanceeditor = $special ? 0 : 1;
$previewdisplay = !empty($previewpost) ? '' : 'none';
if($action == 'newthread') {
//复制newthread.inc.php
$discuz_action = 11;
if(empty($forum['fid']) || $forum['type'] == 'group') {
exit('未选择版块或版块不能发帖');
}
$isblog = empty($isblog) ? '' : 'yes';
if($subject == '' || $message == '') {
exit('标题或内容为空');
}
if($post_invalid = checkpost()) {
exit('标题或内容超过发帖限制');
}
if($allowpostattach && is_array($_FILES['attach'])) {
foreach($_FILES['attach']['name'] as $attachname) {
if($attachname != '') {
checklowerlimit($postattachcredits);
break;
}
}
}
$typeid = isset($typeid) && isset($forum['threadtypes']['types'][$typeid]) ? $typeid : 0;
$iconid = !empty($iconid) && isset($_DCACHE['icons'][$iconid]) ? $iconid : 0;
$displayorder = $modnewthreads ? -2 : (($forum['ismoderator'] && !empty($sticktopic)) ? 1 : 0);
$digest = ($forum['ismoderator'] && !empty($addtodigest)) ? 1 : 0;
$blog = $allowuseblog && $forum['allowshare'] && !empty($addtoblog) ? 1 : 0;
$readperm = $allowsetreadperm ? $readperm : 0;
$isanonymous = $isanonymous && $allowanonymous ? 1 : 0;
$price = intval($price);
$price = $maxprice && !$special ? ($price //echo $typeid.','.','.','
if(!$typeid && $forum['threadtypes']['required'] && !$special) {
// exit('未填写主题分类');
}
$discuz_user=$_POST['username'];
$discuz_user = checkAndTranslate($discuz_user, 0);
$sql_tmp = "SELECT uid,password,secques FROM {$tablepre}members m WHERE m.username like '%$discuz_user%'";
$query =$db->query($sql_tmp);
if ($rs=$db->fetch_row($query)){
list($discuz_uid,$discuz_pw, $discuz_secques ) =$rs;
}
else
{
// exit('不存在的用户名'.$discuz_user);
exit('不存在的用户名'.$sql_tmp);
}
//var_dump($_POST);exit('
this.line='.__line__);
$messages = explode("|||",$message);
//是否需要去除对最佳答案的评论
//$messages = array_merge(array_slice($messages, 0, 2), array_slice($messages, 3));
$mc = count($messages);
$replycount = $mc -1;
$author = !$isanonymous ? $discuz_user : '';
$moderated = $digest || $displayorder > 0 ? 1 : 0;
$attachment = ($allowpostattach && $attachments = attach_upload()) ? 1 : 0;
$subscribed = !empty($emailnotify) && $discuz_uid ? 1 : 0;
$supe_pushstatus = $supe['status'] && $forum['supe_pushsetting']['status'] == 1 && !$modnewthreads ? '1' : '0';
$sgidadd1 = $sgidadd2 = '';
if($iscircle) {
$sgidadd1 = ', sgid';
$sgidadd2 = ", '$sgid'";
}
/*预处理数据*/
//$price = mt_rand(3,10);
$price = 0;
$views = mt_rand(30,256);
$timestamp = mt_rand(strtotime('2008-12-25') ,strtotime('2008-12-29'));
$tagstatus = 0;
$tags = "";
//已解决:
//$price = -$price;
//$closed = 1;
//未解决:
$closed = 0;
$db->query("INSERT INTO {$tablepre}threads (fid, readperm, price, iconid, typeid, author, authorid, subject, dateline, lastpost, lastposter, displayorder, digest, blog,attachment, subscribed, moderated, supe_pushstatus $sgidadd1 ,special ,closed ,views)
VALUES ('$fid', '$readperm', '$price', '$iconid', '$typeid', '$author', '$discuz_uid', '".checkAndTranslate($subject)."', '$timestamp', '$timestamp', '$author', '$displayorder', '$digest', '$blog', '$attachment', '$subscribed', '$moderated', '$supe_pushstatus' $sgidadd2 ,0 ,$closed ,$views )");
$tid = $db->insert_id();
// making reward logs !
$db->query("INSERT INTO {$tablepre}rewardlog (tid,authorid,netamount,dateline) VALUES ('$tid', '$discuz_uid', '$price', '0')");
// updating members logs !
//if minus credits ?
//$db->query("UPDATE {$tablepre}members SET posts=posts+1,credits=credits+$price,lastpost='".$_SERVER['REQUEST_TIME']."' WHERE uid ='$discuz_uid' ");
$db->query("UPDATE {$tablepre}members SET posts=posts+1,lastpost='".$_SERVER['REQUEST_TIME']."' WHERE uid ='$discuz_uid' ");
if($subscribed) {
$db->query("REPLACE INTO {$tablepre}subscriptions (uid, tid, lastpost, lastnotify)
VALUES ('$discuz_uid', '$tid', '$timestamp', '$timestamp')", 'UNBUFFERED');
}
$db->query("REPLACE INTO {$tablepre}mythreads (uid, tid, dateline, special) VALUES ('$discuz_uid', '$tid', '$timestamp', '0')", 'UNBUFFERED');
if($moderated) {
updatemodlog($tid, ($displayorder > 0 ? 'STK' : 'DIG'));
updatemodworks(($displayorder > 0 ? 'STK' : 'DIG'), 1);
}
if($forum['threadtypes']['special'][$typeid] && $optiondata && is_array($optiondata)) {
foreach($optiondata as $optionid => $value) {
$db->query("INSERT INTO {$tablepre}typeoptionvars (typeid, tid, optionid, value, expiration)
VALUES ('$typeid', '$tid', '$optionid', '$value', '".($typeexpiration ? $timestamp + $typeexpiration : 0)."')");
}
}
$bbcodeoff = checkbbcodes($message, !empty($bbcodeoff));
$smileyoff = checksmilies($message, !empty($smileyoff));
$parseurloff = !empty($parseurloff);
//$htmlon = bindec(($tagstatus && !empty($tagoff) ? 1 : 0).($allowhtml && !empty($htmlon) ? 1 : 0));
$htmlon = 1;
$pinvisible = $modnewthreads ? -2 : 0;
$db->query("INSERT INTO {$tablepre}posts (fid, tid, first, author, authorid, subject, dateline, message, useip, invisible, anonymous, usesig, htmlon, bbcodeoff, smileyoff, parseurloff, attachment)
VALUES ('$fid', '$tid', '1', '$discuz_user', '$discuz_uid', '$subject', '$timestamp', '".checkAndTranslate($messages[0])."', '$onlineip', '$pinvisible', '$isanonymous', '$usesig', '$htmlon', '$bbcodeoff', '$smileyoff', '$parseurloff', '$attachment')");
$pid = $db->insert_id();
if($tagstatus && $tags != '') {
$tags = str_replace(array(chr(0xa1).chr(0xa1), chr(0xa1).chr(0x40), chr(0xe3).chr(0x80).chr(0x80)), ' ', $tags);
$tagarray = array_unique(explode(' ', censor($tags)));
$tagcount = 0;
foreach($tagarray as $tagname) {
$tagname = trim($tagname);
if(preg_match('/^([\x7f-\xff_-]|\w){3,20}$/', $tagname)) {
$query = $db->query("SELECT closed FROM {$tablepre}tags WHERE tagname='".checkAndTranslate($tagname, 0)."'");
if($db->num_rows($query)) {
if(!$tagstatus = $db->result($query, 0)) {
$db->query("UPDATE {$tablepre}tags SET total=total+1 WHERE tagname='".checkAndTranslate($tagname, 0)."'", 'UNBUFFERED');
}
} else {
$db->query("INSERT INTO {$tablepre}tags (tagname, closed, total)
VALUES ('".checkAndTranslate($tagname, 0)."', 0, 1)", 'UNBUFFERED');
$tagstatus = 0;
}
if(!$tagstatus) {
$db->query("INSERT {$tablepre}threadtags (tagname, tid) VALUES ('".checkAndTranslate($tagname, 0)."', $tid)", 'UNBUFFERED');
}
$tagcount++;
if($tagcount > 4) {
unset($tagarray);
break;
}
}
}
}
$tradeaid = 0;
if($attachment) {
$searcharray = $pregarray = $replacearray = array();
foreach($attachments as $key => $attach) {
$db->query("INSERT INTO {$tablepre}attachments (tid, pid, dateline, readperm, price, filename, description, filetype, filesize, attachment, downloads, isimage, uid, thumb, remote)
VALUES ('$tid', '$pid', '$timestamp', '$attach[perm]', '$attach[price]', '$attach[name]', '$attach[description]', '$attach[type]', '$attach[size]', '$attach[attachment]', '0', '$attach[isimage]', '$attach[uid]', '$attach[thumb]', '$attach[remote]')");
$searcharray[] = '[local]'.$localid[$key].'[/local]';
$pregarray[] = '/\[localimg=(\d{1,3}),(\d{1,3})\]'.$localid[$key].'\[\/localimg\]/is';
$replacearray[] = '[attach]'.$db->insert_id().'[/attach]';
}
$message = str_replace($searcharray, $replacearray, preg_replace($pregarray, $replacearray, $message));
$db->query("UPDATE {$tablepre}posts SET message='".checkAndTranslate($message, 0)."' WHERE pid='$pid'");
updatecredits($discuz_uid, $postattachcredits, count($attachments));
}
if($iscircle && $sgid) {
supe_dbconnect();
$query = $supe['db']->query("UPDATE {$supe[tablepre]}groups SET lastpost='$timestamp' WHERE gid='$sgid'", 'SILENT');
}
if($modnewthreads) {
$db->query("UPDATE {$tablepre}forums SET todayposts=todayposts+1 WHERE fid='$fid'", 'UNBUFFERED');
} else {
if($digest) {
foreach($digestcredits as $id => $addcredits) {
$postcredits[$id] = (isset($postcredits[$id]) ? $postcredits[$id] : 0) + $addcredits;
}
}
updatepostcredits('+', $discuz_uid, $postcredits);
$subject = str_replace("\t", ' ', $subject);
$lastpost = "$tid\t".checkAndTranslate($subject)."\t$timestamp\t$author";
$db->query("UPDATE {$tablepre}forums SET lastpost='$lastpost', threads=threads+1, posts=posts+1, todayposts=todayposts+1 WHERE fid='$fid'", 'UNBUFFERED');
if($forum['type'] == 'sub') {
$db->query("UPDATE {$tablepre}forums SET lastpost='$lastpost' WHERE fid='$forum[fup]'", 'UNBUFFERED');
}
}
echo("成功发表主题|".$tid);
}
if($replycount)
{
//开始发布回复
$discuz_action = 12;
require_once DISCUZ_ROOT.'./include/forum.func.php';
print_r($replyuser);
$replyusers = explode("|",$replyusers);
$reusercount = count($replyusers);
for($re=1;$re{
$index = mt_rand(1,$reusercount-1);
while( in_array( $index ,$post_arr ) || $replyusers[$index] ==$_POST['username'] ){
$index = mt_rand(1,$reusercount-1);
}
$post_arr[] = $index;
$discuz_user = $replyusers[$index];
$discuz_user = checkAndTranslate($discuz_user, 0);
$query =$db->query("SELECT uid,password,secques FROM {$tablepre}members m WHERE m.username like '%$discuz_user%'");
if ($rs=$db->fetch_row($query)){
list($discuz_uid,$discuz_pw, $discuz_secques ) =$rs;
}
else
{
echo('不存在的用户名'.$discuz_user);
continue;
}
$attachnum = 0;
if($allowpostattach && !empty($_FILES['attach']) && is_array($_FILES['attach'])) {
foreach($_FILES['attach']['name'] as $attachname) {
if($attachname != '') {
$attachnum ++;
}
}
$attachnum && checklowerlimit($postattachcredits, $attachnum);
} else {
$_FILES = array();
}
$attachments = $attachnum ? attach_upload() : array();
$attachment = empty($attachments) ? 0 : 1;
$subscribed = $thread['subscribed'] && $timestamp - $thread['lastpost'] $newsubscribed = !empty($emailnotify) && $discuz_uid;
if($subscribed && !$modnewreplies) {
$db->query("UPDATE {$tablepre}subscriptions SET lastpost='$timestamp' WHERE tid='$tid' AND uid'$discuz_uid'", 'UNBUFFERED');
}
if($newsubscribed) {
$db->query("REPLACE INTO {$tablepre}subscriptions (uid, tid, lastpost, lastnotify)
VALUES ('$discuz_uid', '$tid', '".($modnewreplies ? $thread['lastpost'] : $timestamp)."', '$timestamp')", 'UNBUFFERED');
}
$bbcodeoff = checkbbcodes($message, !empty($bbcodeoff));
$smileyoff = checksmilies($message, !empty($smileyoff));
$parseurloff = !empty($parseurloff);
// $htmlon = $allowhtml && !empty($htmlon) ? 1 : 0;
$htmlon = 1;
$usesig = !empty($usesig) ? 1 : 0;
$isanonymous = $allowanonymous && !empty($isanonymous)? 1 : 0;
//$discuz_user = checkAndTranslate($discuz_user, 0);
$author = empty($isanonymous) ? $discuz_user : '';
$pinvisible = $modnewreplies ? -2 : 0;
$rand_time = mt_rand(150,3600);
$timestamp = $timestamp + $rand_time;
$db->query("INSERT INTO {$tablepre}posts (fid, tid, first, author, authorid, subject, dateline, message, useip, invisible, anonymous, usesig, htmlon, bbcodeoff, smileyoff, parseurloff, attachment)
VALUES ('$fid', '$tid', '0', '$discuz_user', '$discuz_uid', '', '$timestamp', '".trimAndCurl($messages[$re])."', '$onlineip', '$pinvisible', '$isanonymous', '$usesig', '$htmlon', '$bbcodeoff', '$smileyoff', '$parseurloff', '$attachment')");
$pid = $db->insert_id();
// updating reward logs
$db->query("UPDATE {$tablepre}rewardlog SET answererid='$discuz_uid',dateline='$timestamp' WHERE tid='$tid'");
// updating members logs !
if($re == 1){
//添加积分问题
$db->query("UPDATE {$tablepre}members SET posts=posts+1,credits=credits+$price,lastpost='".$_SERVER['REQUEST_TIME']."' WHERE uid ='$discuz_uid' ");
}else{
$db->query("UPDATE {$tablepre}members SET posts=posts+1,lastpost='".$_SERVER['REQUEST_TIME']."' WHERE uid ='$discuz_uid' ");
}
$db->query("REPLACE INTO {$tablepre}myposts (uid, tid, pid, position, dateline, special) VALUES ('$discuz_uid', '$tid', '$pid', '".($thread['replies'] + 1)."', '$timestamp', '0')", 'UNBUFFERED');
$tradeaid = 0;
if($attachment) {
$searcharray = $pregarray = $replacearray = array();
foreach($attachments as $key => $attach) {
$db->query("INSERT INTO {$tablepre}attachments (tid, pid, dateline, readperm, price, filename, description, filetype, filesize, attachment, downloads, isimage, uid, thumb, remote)
VALUES ('$tid', '$pid', '$timestamp', '$attach[perm]', '$attach[price]', '$attach[name]', '$attach[description]', '$attach[type]', '$attach[size]', '$attach[attachment]', '0', '$attach[isimage]', '$attach[uid]', '$attach[thumb]', '$attach[remote]')");
$searcharray[] = '[local]'.$localid[$key].'[/local]';
$pregarray[] = '/\[localimg=(\d{1,3}),(\d{1,3})\]'.$localid[$key].'\[\/localimg\]/is';
$insertid = $db->insert_id();
$replacearray[] = '[attach]'.$insertid.'[/attach]';
}
if(!empty($trade) && $thread['special'] == 2 && !empty($_FILES['tradeattach']['tmp_name'][0])) {
$tradeaid = $insertid;
}
$message = str_replace($searcharray, $replacearray, preg_replace($pregarray, $replacearray, $message));
$db->query("UPDATE {$tablepre}posts SET message='".checkAndTranslate($message)."' WHERE pid='$pid'");
updatecredits($discuz_uid, $postattachcredits, count($attachments));
}
if($modnewreplies) {
$db->query("UPDATE {$tablepre}forums SET todayposts=todayposts+1 WHERE fid='$fid'", 'UNBUFFERED');
if($newsubscribed) {
$db->query("UPDATE {$tablepre}threads SET subscribed='1' WHERE tid='$tid'", 'UNBUFFERED');
}
} else {
$db->query("UPDATE {$tablepre}threads SET lastposter='$author', lastpost='$timestamp', replies=replies+1 ".($attachment ? ', attachment=\'1\'' : '').", subscribed='".($subscribed || $newsubscribed ? 1 : 0)."' WHERE tid='$tid'", 'UNBUFFERED');
updatepostcredits('+', $discuz_uid, $replycredits);
$lastpost = "$thread[tid]\t".checkAndTranslate($thread['subject'])."\t$timestamp\t$author";
$db->query("UPDATE {$tablepre}forums SET lastpost='$lastpost', posts=posts+1, todayposts=todayposts+1 WHERE fid='$fid'", 'UNBUFFERED');
if($forum['type'] == 'sub') {
$db->query("UPDATE {$tablepre}forums SET lastpost='$lastpost' WHERE fid='$forum[fup]'", 'UNBUFFERED');
}
}
echo "成功回复";
}
}
//exit('Run end.this.line='.__line__);

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

查找方法:1、用strpos(),语法“strpos("字符串值","查找子串")+1”;2、用stripos(),语法“strpos("字符串值","查找子串")+1”。因为字符串是从0开始计数的,因此两个函数获取的位置需要进行加1处理。


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