Go Premium for a chance to win a PS4. Enter to Win

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 208
  • Last Modified:

How to add some column with | delimiter

PHP

Hi experts,

I have this program where i called the data from database.
The datafield i need to look for is absent and only absent will print out on the screen
In this database i need to retrieved data that with condition 1 to 7 (as day)
I have 3 value that i put it in an array e.g: $student = array(18,22,34) where i retrieved from database
I should have output of |||||||| if the student is not absent from day 1 to 7
But my problem now is say : studentID 18 only absent once on tuesday is will only print the string as below

absent|
and not
|absent||||||

below is my code

I need to find When a student is absent and the fieldname is ABSENT
I have 3 value that i put it in an array e.g: $student = array(18,22,34) where i retrieved from database
i called this array as ID's
since one week have 7 days so i create an array as array(1,2,3,4,5,6,7)

i do as follow

function ABSENT()
{
$DAY= array(1,2,3,4,5,6,7);

  foreach($this->Getstudent as $student)
   {
      for ($j=0; $j<sizeof($IndexOrder);$j++)
     {
        $query = "SELECT ABSENT
                   FROM $ABSENTTABLE
                  WHERE STUDENT = \"$student\" AND INDEXORDER = $DAY[$j]";
 
        $result = mysql_query($query);
       
         while($row = mysql_fetch_array($result))
           {
          $this->GetABSENT  .=  ''.$row['ABSENT'].'|';  
           }
     }
  }
  mysql_close($dbLink);
}
 
THE CURRENT RESULT I GET IS EXAMPLE 22 ABSENT 2 DAYS ON MONDAY AND FRIDAY IT ONLYT PRINT OUT
ABSENT|ABSENT|
AND NOT
ABSENT||||ABSENT|||

how to solve this
0
firekiller15
Asked:
firekiller15
  • 2
1 Solution
 
RurneCommented:
The problem is in your while loop.  You're only appending when you hit the while($row  = mysql_fetch_array($result)) loop, which only triggers when an absent day.  You may want to shift your logic up a bit:
function ABSENT()
{
$DAY= array(1,2,3,4,5,6,7);
 
  foreach($this->Getstudent as $student)
   {
      for ($j=0; $j<7;$j++)
     {
        $query = "SELECT ABSENT
                   FROM $ABSENTTABLE
                  WHERE STUDENT = \"$student\" AND INDEXORDER = $j";
 
        $result = mysql_query($query);
       
        $this->GetABSENT .= (mysql_num_rows($result) > 0 
                              ? mysql_result($result, 0, 0) 
                              : '');
        $this->GetABSENT .= '|';
        
     }
  }
  mysql_close($dbLink);
}

Open in new window

0
 
firekiller15Author Commented:
this INDEXORDER = $j"; meaning i no need $DAY= array(1,2,3,4,5,6,7);??
0
 
RurneCommented:
Exactly.

You may actually want to fix line 11 though (since it'll loop from 0 to 6, you need to bump it up one to replace the 1..7 array):
                  WHERE STUDENT = \"$student\" AND INDEXORDER = ".($j + 1);

Open in new window

0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now