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mysql php data fetch

Posted on 2011-02-15
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Last Modified: 2014-09-14
Dear Experts,

I think there is a way to fetch the data from the database without using "while"
how should I use it if it is a one row of data.

$result3 = mysql_query($sql3)
or die(mysql_error());  

while($row = mysql_fetch_array( $result3 )) {
      // Print out the contents of each row into a table
      $datacity = $row['rt_value'];
      echo $datacity;
      
       }
0
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Question by:Braveheartli
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6 Comments
 
LVL 9

Assisted Solution

by:AriMc
AriMc earned 400 total points
ID: 34904332
You should still check for errors of mysql_fetch_array, so there is not much change but replace while with "if" and you'll only get one row:

$result3 = mysql_query($sql3)
or die(mysql_error());  

if ($row = mysql_fetch_array( $result3 ))
{
      // Print out the contents of each row into a table
      $datacity = $row['rt_value'];
      echo $datacity;  
}
0
 
LVL 11

Assisted Solution

by:SAMIR BHOGAYTA
SAMIR BHOGAYTA earned 400 total points
ID: 34904610
0
 
LVL 13

Assisted Solution

by:dsmile
dsmile earned 400 total points
ID: 34904813
To get single record, you can use mysql_result
$result3 = mysql_query($sql3)
or die(mysql_error());  

$row = mysql_result($result3, 0); 

$datacity = $row['rt_value'];
echo $datacity;

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LVL 14

Assisted Solution

by:dejaanbu
dejaanbu earned 400 total points
ID: 34905160
U can use mysql_fetch_object function.

$result3 = mysql_query($sql3) or die(mysql_error());  
$obj =mysql_fetch_object($result3);

echo $obj->YOURLCOLUM1;
echo $obj->COLUMN2;

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hope this helps
0
 
LVL 111

Accepted Solution

by:
Ray Paseur earned 400 total points
ID: 34907283
If your query returns more than zero rows of data, you want to use while() for processing the row(s).  If you want to retrieve only one row of data, you can add the LIMIT 1 clause to your query.  There is no need or advantage to write different PHP code for one or more rows.  In fact, there is the disadvantage that you would have more code to maintain, you could not copy code, etc.
0
 
LVL 1

Author Closing Comment

by:Braveheartli
ID: 34914916
thank you
0

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