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Home Backend Development PHP Tutorial 咨询一个MYSQL+php的链表查询输出问题

咨询一个MYSQL+php的链表查询输出问题

Jun 23, 2016 pm 02:25 PM

sql php mysql select cms

表cms_archives15里的字段
   aid mediumint(8)   UNSIGNED 否 0                
  subject varchar(255) gbk_chinese_ci  否                 
  jumpurl varchar(120) gbk_chinese_ci  否                 
  caid smallint(5)   UNSIGNED 否 0                
  chid tinyint(3)   UNSIGNED 否 0                
  mid mediumint(8)   UNSIGNED 否 0                
  mname char(15) gbk_chinese_ci  否                 
  ucid mediumint(8)   UNSIGNED 否 0                
  author char(30) gbk_chinese_ci  否                 
  source varchar(50) gbk_chinese_ci  否                 
  abstract text gbk_chinese_ci  否                 
  keywords char(100) gbk_chinese_ci  否                 
  thumb varchar(255) gbk_chinese_ci  否                 
  imgnum tinyint(3)   UNSIGNED 否 0                
  letter char(2) gbk_chinese_ci  否                 
  vieworder smallint(6)   UNSIGNED 否 500                
  initdate int(10)   否 0                
  createdate int(10)   UNSIGNED 否 0                
  updatedate int(10)   UNSIGNED 否 0                
  refreshdate int(10)   否 0                
  enddate int(10)   否 0                
  checked tinyint(1)   UNSIGNED 否 0                
  customurl varchar(100) gbk_chinese_ci  否                 
  nowurl varchar(255) gbk_chinese_ci  否                 
  clicks int(10)   UNSIGNED 否 0                
  downs int(10)   UNSIGNED 否 0                
  mclicks int(10)   UNSIGNED 否 0                
  wclicks int(10)   UNSIGNED 否 0                
  mdowns int(10)   UNSIGNED 否 0                
  wdowns int(10)   UNSIGNED 否 0                
  mplays int(10)   UNSIGNED 否 0                
  wplays int(10)   UNSIGNED 否 0                
  dpmid smallint(6)   否 -1                
  plays int(10)   UNSIGNED 否 0                
  dj float   否 0                
  dt varchar(40) gbk_chinese_ci  否                 
  ggdt varchar(40) gbk_chinese_ci  否                 
  dt_0 double   否 0                
  dt_1 double   UNSIGNED 否 0                
  answercid mediumint(8)   UNSIGNED 否 0                
  close tinyint(1)   UNSIGNED 否 0                
  finishdate int(10)   UNSIGNED 否 0                
  ccid1 smallint(6)   UNSIGNED 否 0                
  ccid2 smallint(6)   UNSIGNED 否 0                
  ccid3 smallint(6)   UNSIGNED 否 0                
  ccid12 varchar(255) gbk_chinese_ci  否                 
  ccid14 smallint(6)   UNSIGNED 否 0                
  ccid18 smallint(6)   UNSIGNED 否 0                
  pid3 mediumint(8)   UNSIGNED 否 0                
  inorder3 smallint(6)   UNSIGNED 否 0                
  incheck3 tinyint(1)   UNSIGNED 否 0                
  aesfys int(10)   UNSIGNED 否 0                
  aczfys int(10)   UNSIGNED 否 0                
  lpczsl int(11)   否 0                
  lpesfsl int(11)   否 0                
  csjdj float   否 0                
  csjgz float   否 0                
  cspjj float   UNSIGNED 否 0                
  czzdj float   否 0                
  czzgj float   否 0                
  czpjj float   UNSIGNED 否 0                
  ahds int(10)   UNSIGNED 否 0                
  azxs int(10)   UNSIGNED 否 0                
  atps int(10)   UNSIGNED 否 0                
  ahss int(10)   UNSIGNED 否 0                
  adps int(10)   UNSIGNED 否 0                
  adpf float   UNSIGNED 否 0                
  ayss int(10)   UNSIGNED 否 0                
  agzs int(10)   UNSIGNED 否                 
  pid5 mediumint(8)   UNSIGNED 否 0                
  inorder5 smallint(6)   UNSIGNED 否 0                
  incheck5 tinyint(1)   UNSIGNED 否 0                
  pid6 mediumint(8)   UNSIGNED 否 0                
  inorder6 smallint(6)   UNSIGNED 否 0                
  incheck6 tinyint(1)   UNSIGNED 否 0                
  color varchar(10) gbk_chinese_ci  否                 
  relatedaid varchar(255) gbk_chinese_ci  否                 
  ccid41 smallint(6)   UNSIGNED 否 0                
  ccid51 smallint(6)   UNSIGNED 否 0                
  ccid53 smallint(6)   UNSIGNED 否 0                
  tid smallint(6)   UNSIGNED 否 0                
  editorid mediumint(8)   UNSIGNED 否 0                
  editor char(30) gbk_chinese_ci  否                 
  from_mid mediumint(8)   UNSIGNED 否 0                
  from_mname char(15) gbk_chinese_ci  否                 
  needstatics varchar(255) gbk_chinese_ci  否                 
  arctpls varchar(255) gbk_chinese_ci  否                 
  awds int(10)   UNSIGNED 否 0                
  atjs int(10)   UNSIGNED 否                 
  azbs int(10)   UNSIGNED 否 0                
  ayxs int(10)   UNSIGNED 否                 
  ccid54 smallint(6)   UNSIGNED 否 0                
表cms_archives_4里的字段
 字段 类型 整理 属性 Null 默认 额外 操作 
  aid mediumint(8)   UNSIGNED 否 0                
  address varchar(150) gbk_chinese_ci  否                 
  xkzh varchar(100) gbk_chinese_ci  否                 
  dfl varchar(20) gbk_chinese_ci  否                 
  lhl varchar(20) gbk_chinese_ci  否                 
  yjl varchar(10) gbk_chinese_ci  否                 
  wygs varchar(50) gbk_chinese_ci  否                 
  wyf varchar(50) gbk_chinese_ci  否                 
  qtbz varchar(255) gbk_chinese_ci  否                 
  kprq varchar(50) gbk_chinese_ci  否                 
  jfrq varchar(50) gbk_chinese_ci  否                 
  jzmj varchar(10) gbk_chinese_ci  否                 
  zdmj varchar(10) gbk_chinese_ci  否                 
  cksm varchar(100) gbk_chinese_ci  否                 
  content text gbk_chinese_ci  否                 
  xqjs text gbk_chinese_ci  否                 
  loupanlogo varchar(255) gbk_chinese_ci  否                 
  lphf varchar(255) gbk_chinese_ci  否                 
  tel varchar(100) gbk_chinese_ci  否                 
  sldz varchar(255) gbk_chinese_ci  否                 
  xqss varchar(150) gbk_chinese_ci  否                 
  jtxl varchar(150) gbk_chinese_ci  否                 
  zxcd int(10)   否 0                
  jgjj float   否 0                
  jdjj float   否 0                
  bdsm varchar(255) gbk_chinese_ci  否                 
  ltbk varchar(255) gbk_chinese_ci  否                 
  lpbbs varchar(10) gbk_chinese_ci  否                 
  xqhs varchar(10) gbk_chinese_ci  否                 
  jgdate int(10)   否 0                
  lppmtu varchar(255) gbk_chinese_ci  否                 
  wydz varchar(200) gbk_chinese_ci  否                 
  leixing varchar(1) gbk_chinese_ci  否 0                
  lcs varchar(10) gbk_chinese_ci  否                 
  hxs int(10)   否 0                
  tslp varchar(255) gbk_chinese_ci  否                 
  fkxs varchar(255) gbk_chinese_ci  否                 
  lpxz varchar(255) gbk_chinese_ci  否                 
  dtsm text gbk_chinese_ci  否                 
表cms_housesrecords里的字段
 字段 类型 整理 属性 Null 默认 额外 操作 
  cid int(10)   UNSIGNED 否  auto_increment               
  aid mediumint(9)   UNSIGNED 否                 
  isnew tinyint(1)   否                 
  highest float   UNSIGNED 否                 
  average float   UNSIGNED 否                 
  lowest float   UNSIGNED 否                 
  message varchar(255) gbk_chinese_ci  否                 
  createdate int(11)   UNSIGNED 否                
需要实现的功能是如果上次记录的价格高于本次记录价格输出↑相同→下降↓
以下是代码,帮看看,死活不出来东西。

                $sql = "SELECT a.`aid`,a.`subject` FROM cms_archives15 a LEFT JOIN cms_archives_4 c ON (c.aid=a.aid) WHERE a.caid ='2' AND a.chid='4' AND (c.leixing='0' OR c.leixing='1') AND `ccid1` = '211' ORDER BY a.updatedate DESC LIMIT 0,80";
        
                $query = mysql_query($sql);
                while($arr = mysql_fetch_array($query)){
                $jgsql = "select `average` from `cms_housesrecords` where `aid` = '".$arr['aid']."' order by `createdate` desc limit 2";
                
                $jgquery = mysql_query($jgsql);
                $i=0;
                while($jgarr = mysql_fetch_array($jgquery)){
                    if($i                         $f_jiage =  $jgarr['average'];
                    }else{
                        $s_jiage =  $jgarr['average'];
                        }
                        $i++;
                    
                    }
                if($f_jiage>$s_jiage){
                    
                    $jgstyle = '';
                    
                    }
                elseif($f_jiage==$s_jiage){
                        
                        $jgstyle = '';
                }else{
                    
                    $jgstyle = '';
                    
                    }    
                
                ?>
                

  • .html">=$arr['subject']?>=$f_jiage?>元
        
    =$jgstyle?>



  •                 }
    ?>

    以上是我写的一段房价对比的查询输出,但却啥也不显示,高手们给指点下,看是不是少了什么字段,或者忘记了什么东西呢?

    回复讨论(解决方案)

    信息量太大  眼晕 有重点么

    一步步的调试;输出$jgarr 看看,再根据if进行对比。

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