php - 在循环触发时在php中查询但给出一个变量的结果

Question

我有一个时间表应用程序，需要根据学期一次性为所有教师生成时间表。我正在查询教师 ID，在 while 循环中我使用的是用于生成个别教师时间表的相同代码。根据 mysql 日志，查询正在为每个教师 ID 触发，但正在为所有教师生成相同的时间表。我检查了每一行代码，但不知何故无法正常工作。

我很纠结这个问题，请帮忙。

我的 php 代码:

<?php
include ("includes/functions.php");
$timespan = mysql_real_escape_string($_GET['timespan']);

$q11 = "select * from teachers order by teacher";
$r11 = mysql_query($q11) or die(mysql_error());
while($rows11 = mysql_fetch_array($r11)){

$teacher = $rows11['id'];

$array_day=array('Mon' => 0, 'Tue' => 1, 'Wed' => 2, 'Thu' => 3, 'Fri' => 4, 'Sat' =>      5);

if($timespan=="BS"){
 $qs="";
}
else if ($timespan=="MS"){
 $qs=" and (partno='1' or partno='3' or partno='5' or partno='9') ";
}
else if ($timespan=="WS"){
$qs=" and (partno='2' or partno='4' or partno='6' or partno='9') ";
}
else if ($timespan=="1"){
$qs=" and partno='1' ";
}
else if ($timespan=="2"){
$qs=" and partno='2' ";
}
else if ($timespan=="3"){
$qs=" and partno='3' ";
}
else if ($timespan=="4"){
$qs=" and partno='4' ";
}
else if ($timespan=="5"){
$qs=" and partno='5' ";
}
else if ($timespan=="6"){
$qs=" and partno='6' ";
}
else if ($timespan=="7"){
$qs=" and partno='7' ";
}
else if ($timespan=="8"){
$qs=" and partno='8' ";
}
else if ($timespan=="10"){
$qs=" and partno='1' ";
}
else if ($timespan=="11"){
 $qs=" and partno='2' ";
}
else if ($timespan=="9"){
$qs=" and partno='9' ";
}

if($qs==""){
$q1="SELECT tt.day as day, tt.period as period, tt.egstatus as egstat, tt.resp_id as id,    tt.sub_group, tt.filter, c.shortname as c_s, p.shortname as p_s, tt.teacherid, tt.subjectid as subject, r.room as room, t.apd1 as apd1, t.apd2 as apd2, g.groupname as class,  t.teacher as teacher, p.courseid as course, p.partno as part FROM course c, papers p, ttresponsibility tt, teachers t, groups g, rooms r  where c.id=p.courseid and p.paperid = tt.subjectid and tt.teacherid= t.id and tt.room=r.room_id and tt.groupname=g.group_id and tt.teacherid = '$teacher' order by tt.day,tt.period,p.partno ASC";
}else{
$q1="SELECT tt.day as day, tt.period as period, tt.egstatus as egstat, tt.resp_id as id, tt.sub_group, tt.filter, c.shortname as c_s, p.shortname as p_s, tt.teacherid, tt.subjectid as subject, r.room as room, t.apd1 as apd1, t.apd2 as apd2, g.groupname as class,  t.teacher as teacher, p.courseid as course, p.partno as part FROM course c, papers p, ttresponsibility tt, teachers t, groups g, rooms r  where c.id=p.courseid and p.paperid = tt.subjectid and tt.teacherid= t.id and tt.room=r.room_id and tt.groupname=g.group_id and tt.teacherid = '$teacher'" .$qs. " order by tt.day,tt.period,p.partno ASC";
}

$r1 = mysql_query($q1) or die ("responsibility fetch error:" .mysql_error());

if(mysql_num_rows($r1) > 0){
$q2 = "select teacher,name2,type from teachers where id = '$teacher'";
$r2 = mysql_query($q2) or die("teacher fetch error:" .mysql_error());
$rows1 = mysql_fetch_array($r2);
//$num = mysql_num_rows($r1);


echo "<table width=100% style='border:0px ;font-family:arial;font-size:10px; border-  collapse:collapse;cellspacing:0;padding:0px;'><tr><td width=50% align=left border=0 style='border:0px ;font-family:arial;font-size:10px; border-collapse:collapse;cellspacing:0;padding:0px;'>Dated: 31st July 2012</td><td  style='border:0px ;font-family:arial;font-size:10px; border-collapse:collapse;cellspacing:0;padding:0px;' width=50% align=right border=0>Version 2.0</td></tr></table>";


echo "<center><font size=5><strong>Shri Ram College of Commerce</strong></font></center>";

echo "<br>";

echo "<table width=100%><tr><td align=left  style='border:0px ;font-family:arial;font-size:10px; border-collapse:collapse;cellspacing:0;padding:0px;' ><font size=4><strong>Teacher: ";
if($rows1['type']==1){
echo "".$rows1['name2']."";
}else{
echo "".$rows1['teacher']."";
}
echo "</strong></h3></font></b></td>";
if ($timespan=="MS"){
echo "<td align=right  style='border:0px ;font-family:arial;font-size:10px; border-collapse:collapse;cellspacing:0;padding:0px;'><font size=4><strong>Time Span: Monsoon Term</strong></font></br></td></tr></table>";
}
else if ($timespan=="WS"){
echo "<td align=right  style='border:0px ;font-family:arial;font-size:10px; border-     collapse:collapse;cellspacing:0;padding:0px;'><font size=4><strong>Time Span: Winter Term</strong></font></br></td></tr></table>";
}
echo "<br>";

echo "<table width='100%' border='1' class='tt'>";

echo "<tr class='heads'>";
echo "<td rowspan='2' style='padding:0;text-align:center; width:1%;'>  <b>Period<br>Time</b></td>";
echo "<td style='padding:0;text-align:center; '><b>I</b></td>";
echo "<td style='padding:0;text-align:center; '><b>II</b></td>";
echo "<td style='padding:0;text-align:center; '><b>III</b></td>";
echo "<td style='padding:0;text-align:center; '><b>IV</b></td>";
echo "<td style='padding:0;text-align:center; '><b>V</b></td>";
echo "<td style='padding:0;text-align:center; width:1%;' ><b>Break</b></td>";
echo "<td style='padding:0;text-align:center; '><b>VI</b></td>";
echo "<td style='padding:0;text-align:center; '><b>VII</b></td>";
echo "<td style='padding:0;text-align:center; '><b>VIII</b></td>";
echo "<td style='padding:0;text-align:center; '><b>IX</b></td>";
 echo "</tr>";
 echo "<tr class='heads'>";
echo "<td style='padding:0;text-align:center; '><b>8:40 AM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>9:35 AM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>10:30 AM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>11:25 AM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>12:20 PM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>1:15 PM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>2:00 PM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>2:55 PM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>3:50 PM</b></td>";
echo "<td style='padding:0;text-align:center; '><b>4:45 PM</b></td>";
echo "</tr>";

$k="ToFetchNextRow";
$l = 0;
$rowToProcess=0;
$toRepeat=1;
$num=mysql_num_rows($r1);
$num1=$num-1;    

for($i=0;$i<=5;$i++){

$day = array_search($i, $array_day);

echo "<tr class='period'><td style='padding:0;text-align:center;'>    
<b>".$day."</b></td>";
for($j=0;$j<=8;$j++){
if($i==0 and $j==5){
  echo "<td style='xycell' rowspan=6 >&nbsp;</td>";
 }

 $noOfEntriesAddedInThisCell=0;
 $toRepeat=1;
 while($toRepeat==1){
   $rows = mysql_fetch_array($r1);
   $data[] = $rows; // creating multidimensional array

   $dt = $data[$rowToProcess]['day']; 
   $period = $data[$rowToProcess]['period'];
   $paper = $data[$rowToProcess]['p_s'];
   $course = $data[$rowToProcess]['c_s'];
   $room = $data[$rowToProcess]['room'];
   $class = $data[$rowToProcess]['class'];
   $id = $data[$rowToProcess]['id'];
   $part = $data[$rowToProcess]['part'];
   $subgroup = $data[$rowToProcess]['sub_group'];
   $weekselector = $data[$rowToProcess]['filter'];
$egstatus = $data[$rowToProcess]['egstat'];  

    //process the row to be processed

    //add the cell entry if it is of interest
   if(($i+1) == $dt and ($j+1) == $period){
// check if the slot is busy
   if($egstatus == 1){

 echo "<td style='xycell' valign=center align=center  class='tt'><b><div style='border-   bottom:0px solid #bbb;padding:0;font-family:arial;font-size:11px'>   <center>Contact<br>Hour</center></td>";
   }
elseif($egstatus == 2){

echo "<td  style='xycell' valign=center align=center><b><div style='border-bottom:0px     solid #bbb;padding:0;font-family:arial;'><a class='slot' style='border-bottom:0px solid #ccc;' href='#' id='status".$dt."+".$period."' onclick='editSlot(".$dt.','.$period.','.$teacher.','.$id."); return false'>Busy</td>";
   }

elseif($egstatus == 0){
  $e = $i + 1;
      $f = $j + 1;
      if($noOfEntriesAddedInThisCell==0){
      echo "<td valign=center align=center style='border:2px solid #000;padding:0;font-family:arial;'";

      if($subgroup!=0){
        echo "class='orangeBlock'";
      }else{
        echo "class='yellowBlock'";
      }

      echo "><b>";
      }
      echo "<table class='' style='border:0px solid #000;font-family:arial;border-collapse:collapse;cellspacing:0;padding:0px;'>";
      echo "<tr>";

      echo "<td style='border-collapse:collapse;border:0px ;font-size:11px; font-family: arial, arial,helvetica, sans-serif;' valign='top'><b> ".$course."-".$part." ".$class."";

if($subgroup!=0){
echo "".$subgroup." "; 
}
echo "".$paper." ".$room."";

if($weekselector==1){
echo "(O)</td>";
}

if($weekselector==2){
echo "(E)</td>";
}


echo "</td></tr></table>";
     }
      $noOfEntriesAddedInThisCell = $noOfEntriesAddedInThisCell+1;

     if($rowToProcess < $num1){

       $rowToProcess=$rowToProcess+1;
     }else{ 
       $toRepeat=0;
     }

}else{
        if($noOfEntriesAddedInThisCell !=0){
        //close the internal table cell
        echo "</td>";
     }else{

  //fill the empty cell
       $r = $i + 1;
       $s = $j + 1;

       echo "<td  valign='top' class='tt'><br><br><br></td>";

  }
     $toRepeat=0;
   }

  }//while closing

 }//jloop closing

}// closing i
echo "</tr>";
echo "</table>";

echo "<br><br><br><br>";

echo "<table width=100% style='border:0px ;font-family:arial;font-size:11px; border-collapse:collapse;cellspacing:0;padding:0px;'>";

echo "<tr><td  style='border:0px ;font-family:arial;font-size:11px; border-collapse:collapse;cellspacing:0;padding:0px;' align=left style=font-size:11px> Convenor</td>  <td  style='border:0px ;font-family:arial;font-size:11px; border-collapse:collapse;cellspacing:0;padding:0px;' align=center style=font-size:11px>Teacher Incharge</td><td  style='border:0px ;font-family:arial;font-size:11px; border-collapse:collapse;cellspacing:0;padding:0px;' align=right style=font-size:11px>Principal</td></tr>";

echo "<tr><td  style='border:0px ;font-family:arial;font-size:11px; border-collapse:collapse;cellspacing:0;padding:0px;' align=left style=font-size:11px style='border-collapse:collapse;border:0px solid #000;'> Vikas Madan</td><td  style='border:0px ;font-family:arial;font-size:11px; border-collapse:collapse;cellspacing:0;padding:0px;' align=center style=font-size:11px>Amit Sachdeva</td><td  style='border:0px ;font-family:arial;font-size:11px; border-collapse:collapse;cellspacing:0;padding:0px;' align=right style=font-size:11px>P. C. Jain</td></tr>";

echo "</table>";

}

else{

echo "";
}

}

?>

编辑的代码片段:

   while($toRepeat==1){
   while($rows = mysql_fetch_array($r1)){
   $data[] = $rows; // creating multidimensional array

   $dt = $data[$rowToProcess]['day']; 
   $period = $data[$rowToProcess]['period'];
   $paper = $data[$rowToProcess]['p_s'];
   $course = $data[$rowToProcess]['c_s'];
   $room = $data[$rowToProcess]['room'];
   $class = $data[$rowToProcess]['class'];
   $id = $data[$rowToProcess]['id'];
   $part = $data[$rowToProcess]['part'];
   $subgroup = $data[$rowToProcess]['sub_group'];
   $weekselector = $data[$rowToProcess]['filter'];
$egstatus = $data[$rowToProcess]['egstat'];  
 }

以及之后的输出。

Answer 1

您需要创建另一个 while 循环 while ($rows = mysql_fetch_array($r1)) { } 您目前没有在循环中因此没有重复值。

---

把这个从循环中去掉:

$array_day=array('Mon' => 0, 'Tue' => 1, 'Wed' => 2, 'Thu' => 3, 'Fri' => 4, 'Sat' =>      5);

我不太确定你在问什么。你是什​​么意思它只有一个变量的结果。您是说循环中的第一个变量是唯一正确返回的变量，还是在第二个循环中没有正确返回变量？