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Argument is not a valid MS SQL-result resource

3 New Member
I am using a text box to search database for a reference number, the search is working ok but i am getting this error when i load the page for the first time:

Warning: mssql_fetch_obj ect(): supplied argument is not a valid MS SQL-result resource in C:\Documents . . . on line 167

When i do a search i get the expected results and the error disappears

here is my code:
Expand|Select|Wrap|Line Numbers
  1. <form id="refsearch" name="searchRef" method="post">
  2.   <table>
  3.     <tr>
  4.       <td>Enter Call Ref</td>
  5.       <td><input name="searchref" type="text" class="textfield" id="searchref" /></td>
  6.     </tr>
  7.     <tr>
  8.       <td><input type="submit" name="search" value="Search" /></td>
  9.     </tr>
  11. <?php
  12.     $reference = $_POST['searchref'];
  13.     $query = "SELECT AmberCatRequestId ";
  14.     $query.= "FROM Customer_Calls ";
  15.     $query.= "WHERE CustomerCallId = $reference";
  17.     $result = mssql_query($query);
  18.     if($row = mssql_fetch_object($result))
  19.     {
  20.         $ref = $row->AmberCatRequestId;
  21.     }
  23. ?>
  24.     <tr>
  25.     <td><h4><br />AmberCat Request:&nbsp;</h1></td>
  26.     <td><h1><br /><?echo $ref;?></h4></td>
  27.     </tr>
  28.   </table>
  29. </form>
how do i stopped the error from appearing when the page is first loaded?
Mar 8 '10 #1
4 5856
1,059 Top Contributor
Can you please post your code in code format.

Expand|Select|Wrap|Line Numbers
  1. $reference = $_POST['searchref'];
  2. $query = "SELECT AmberCatRequestId ";
  3. $query.= "FROM Customer_Calls ";
  4. $query.= "WHERE CustomerCallId = $reference";
  6. $result = mssql_query($query);
  7. if($row = mssql_fetch_object($result))
  8. {
  9. $ref = $row->AmberCatRequestId;
  10. }
  12. ?>
your PHP code start with the line
but when you load your page for the first time there is no $_POST['searchref'] exists

take a closer look at isset() function. you would definitely get an error. so what you can do is first make sure
whether $_POST['searchref'] exists. If it exists perform rest of the operation otherwise skip it.

Mar 8 '10 #2
4 New Member
First time when u load a page there won't be value set for $_POST['searchref'] so you query will be worng..

Check condition if $_POST['searchref'] is not equal to null and then execute the query part.

Hope this will help u...:)
Mar 8 '10 #3
8,658 Recognized Expert Moderator Expert
see also PHP - Common Newbie Pitfalls, 2: Supplied argument is not a valid MySQL result
Mar 8 '10 #4
3 New Member
thanks jpr0325, this is exactly what i was looking for
Mar 9 '10 #5

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