odbc_field_name

(PHP 4, PHP 5)

odbc_field_nameGet the columnname

Описание

string odbc_field_name ( resource $result_id , int $field_number )

Gets the name of the field occupying the given column number in the given result identifier.

Список параметров

result_id

The result identifier.

field_number

The field number. Field numbering starts at 1.

Возвращаемые значения

Returns the field name as a string, or FALSE on error.

Коментарии

Автор:
Wow, I finally have something to contribute.
If you, like me, have been seeking a way to name and fill your variables with the appropriate names an values, rather than naming every variable and using odbc_result($result, 1), odbc_result($result, 2), etc...Then this little loop is for you!  It would probably be nice to use as function, but I'm sure you can do that on your own, eh?

<?php
$query 
"SELECT * FROM TableName";
$result odbc_exec($conn$query) or die('Select failed!');
$i 0;
$fCount odbc_num_fields($result);

while (
odbc_fetch_row($result)) {
    while (
$i $fCount) {
       
$i++;
       
$fName odbc_field_name($result$i);
       
$job[$fName] = odbc_result($result$i);
    }
   
$i=0;

?> 

This should be pretty simple code to follow, you can address your variables at any time later using the column names from your table.  For now I am addressing them with their real values and using this simply to avoid having to type out all the variable names in the top of my code.  Have fun.

Jason/ArtHacker.com
2001-03-10 18:11:49
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
I turned Jason's code into a function to roughly mimic the mysql_fetch_array function. I'm not a programmer and I've been messing with PHP less than a week, so I imagine there's a more efficient method that what I've come up with.


function odbc_fetch_array($rownum, $res)
{

$i = 0; 
$fCount = odbc_num_fields($res); 
odbc_fetch_row($res, $rownum);
    while ($i < $fCount) 
        { 
    $i++; 
    $fName = odbc_field_name($res, $i); 
    $myrow[$fName] = odbc_result($res, $i);
          }
$i=0;
return $myrow;
}
2001-07-31 21:58:36
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
Using your code, and taking it a step further, I can create a standard table from a single line of code by calling a function from my include file - the bonus is, that I can optionally provide a parameter for the name of my style sheet class - further simplifying my formatting of the table.

What synergy you find in these forums - eh?

$Conn = odbc_connect('dsn','user','pass');
$query = "SELECT * FROM yourtable"; 
$result = odbc_exec($Conn, $query) or die('Select failed!'); 

standard_table($result);

Function standard_table($result,$class='')
{
# To format your table if you want to use cascading style sheets
 if ($class == '')
 {
  $css_table = ' border=1';
  $css_tr = '';
  $css_th = '';
  $css_td = ''; 
 }
 else
 {
  $css_table = ' class=\"$class\"';
  $css_tr = ' class=\"$class\"';
  $css_th = ' class=\"$class\"';
  $css_td = ' class=\"$class\"'; 
 }

# Create field names for table header row
$i = 0; 
$fCount = odbc_num_fields($result); 
echo "<table$css_table><tr>";
  while ($i < $fCount) 
  { 
    $i++; 
    $fName = odbc_field_name($result, $i); 
    echo "<th>$fName</th>"; 
  } 
echo "</tr>";

# Create table data rows for query result
$i = 0; 
$fCount = odbc_num_fields($result); 
while (odbc_fetch_row($result)) 
{
echo "<tr>"; 
  while ($i < $fCount) 
  { 
    $i++; 
    $fName = odbc_field_name($result, $i); 
    $job[$fName] = odbc_result($result, $i); 
    echo "<td>$job[$fName]</td>"; 
  } 
echo "</tr>";
$i = 0; 
}
echo "</table>";
}
2003-03-25 23:10:57
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
Well, I've been into PHP for four hours and thanks to "my predecessors before me" (gold163, curt, et al.) I've managed the following. The first thing I try to learn with any web scripting language is to build a dynamic table from a data source. (One thing you didn't have to do gold -previous post- is build an array for the field value.) Cheers! Alex

<html>
 <head>
  <title>PHP Database Example</title>
 </head>
 <style type="text/css">
 <!--
  body {font: 10pt/12pt Tahoma, Verdana, Helvetica, sans-serif; color: indigo; margin: .25in .5in }
  table {color:Navy; background-color:AntiqueWhite; border-color:Maroon; border-style:Solid; border-width: 2px; }
  th {color: blue; font-weight: bold; }
  td {font-size: smaller; }
  .mytable {color:Maroon; background-color:White; border-color:Navy; border-style:Solid; border-width: 1px; }
  th.mytable {background-color:#C0C0C0; }
 //-->
 </style>
 <body>

 <p><?php echo date("j F, Y"); ?></p>
<?php

$db 
odbc_connect("eSell22MDB","","");
$result odbc_exec($db"select ProductID, ProductName, Description1 from Products");

// cool function - returns table
odbc_result_all($result"border=\"1\" class=\"def\"");

$result odbc_exec($db"select * from Products") or die("Select failed");

$myUtil = new Utilities();

$myUtil->standard_table($result,"mytable");

class 
Utilities {

     function 
standard_table($result,$class="")
     {
         
// To format your table if you want to use cascading style sheets
         
if ($class == "")
         {
             
$css_table " border=\"1\"";
             
$css_tr "";
             
$css_th "";
             
$css_td ""
         }
         else
         {
             
$css_table " class=\"$class\"";
             
$css_tr " class=\"$class\"";
             
$css_th " class=\"$class\"";
             
$css_td " class=\"$class\""
         }

         
// Create field names for table header row
         
$i 0
         
$fieldCount odbc_num_fields($result); 
         echo 
"  <table$css_table>\n";
         echo 
"   <tr$css_tr>\n";

         while (
$i $fieldCount
         { 
             
$i++; 
             
$fieldName odbc_field_name($result$i); 
             echo 
"    <th$css_th>$fieldName</th>\n"
         } 
         echo 
"   </tr>\n";

         
# Create table data rows for query result
         
while (odbc_fetch_row($result)) 
         {
             
$i 0
             echo 
"   <tr$css_tr>\n"
             while (
$i $fieldCount
             { 
                 
$i++; 
                 
$fieldData trim(odbc_result($result$i));
                 if (
$fieldData  == "")
                     echo 
"    <td$css_td>&nbsp;</td>\n";
                 else 
                     echo 
"    <td$css_td>$fieldData</td>\n"
             } 
             echo 
"   </tr>\n";
         }
         echo 
"  </table>";
     }
// class Utilities

?>

 </body>
</html>
2003-04-17 03:04:38
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
Example: function field name.

$Link_ID = odbc_connect("DSN", "user", "pass");

$query = "SELECT * FROM products";

$Query_ID = odbc_exec($Link_ID, $query);

while($field = $field_name($Query_ID ))
{
     echo("Field: $field<br />\n");
}

---------------------

function field_name($PrQuery_ID)
{       
     if($Column < odbc_num_fields($PrQuery_ID))
     {       
          $Column += 1;
          $FieldName = odbc_field_name($PrQuery_ID, $Column);

          return $FieldName;
     }       
     else   
     {       
          return 0;
     }       
}
2003-04-29 11:12:31
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
In search of a function that would simply return an array with the names of the fields in a result identifier, the only thing I could find was the odbc_field_name function.  So, for anyone else looking for such a function, here's the (very simple) function I wrote:

function odbc_field_names ($result) {
  for ($i=1; $i <= odbc_num_fields($result); $i++) $return_array[$i-1] = odbc_field_name($result, $i);
  return $return_array;
}

Very simple, I know, but I thought it might be helpful.
2004-04-13 13:01:59
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
Автор:
Note that there is a known limitation with this which truncates the length of the returned field name to 31 characters without warning.
2006-02-21 12:32:36
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
Автор:
If you really need more than 31 characters here's what you can do:

open php5.x.x/ext/odbc/php_odbc_includes.h in an editor like notepad++

change 32 by a greater value in 
typedef struct odbc_result_value {
    char name[32];
    char *value;
    SDWORD vallen;
    SDWORD coltype;
} odbc_result_value;

and recompile php.

I did it with char name[64] cause I have column names like "0214_1_VD_Type d'exploitation Type d'opération (Niveau 1)"  [I didn't choose this stupid name it comes from Eccairs project]
and rebuild php with the method given here install.windows.building  and http://elizabethmariesmith.com/2006/11/09/
compiling-php52-on-windows-with-net-toolchain-is-it-even-possible/

with visual C++ express edition.
2007-11-22 08:23:40
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
Автор:
we faced the 31 char limit using cakephp dbo_odbc.php class (version 1.1.18.5850)

at the end, it calls odbc_fetch_row giving the problem (i tracked it may be due to the php implementation of a ODBCv2 model, which has hard coded 4bytes, 32 bits file names length, while ODBCv3 seems to have a separate specification of that value, fwiw)

we learned from another user (having similar problems with dbo_mssql.php class) how to workaround this problem, 

we solved using inheritance, redefining the method (locally to our application) in order to 
- create a "map" of the query fields (as an array) before executing it
- execute the query in a non-associative way
- after the results are returned, restore the real field names applying the previous created "map" 

another way could be use the COM like:
new COM("ADODB.Connection")
which does not show the 31 chars problem but it could be slower and bound to the windows platform.
2008-02-14 08:08:09
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
Hi hayes029, your idea was very helpful.
Here go a adaptation for select form field.
<?php
  $consulta 
"select * from schema.table";
 
$resposta odbc_exec($con$consulta);
  for(
$i=1$i <= odbc_num_fields($resposta); $i++)
    echo 
"<option value=".odbc_field_name($resposta$i).">".odbc_field_name($resposta$i)."</option>";
?>
2008-11-05 12:39:16
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html
I've been toying around with this for awhile to make it as simple and fast as possible.
 
<?php

/* Start The Connection */
if(!$odbc['connection'] = odbc_connect('DNS','USER','PASS'))
{
    exit(
"Connection Failed<br />\n");
}
else
{
    echo(
"Connected<br />\n");
}

/* Select Which Table */
$odbc['table'] = "table";

/* Fetch The Fieldnames into an Array */
if($result odbc_exec($odbc['connection'],"select * from $odbc['table'];"))
{
    for(
$i 1;$i <= odbc_num_fields($result);$i++)
    {
       
$odbc['rows']['fields'][$i] = odbc_field_name($result,$i);
    }
    unset(
$i);
   
odbc_free_result($result);
}
else
{
    exit(
"Error in SQL Query");
}

/* Close The Connection */
if(odbc_close($odbc['connection']))
{
   
odbc_close($odbc['connection']);
}

/* Print The Array */
if(!empty($odbc['rows']))
{
   
print_r($odbc['rows']);
}

?>
2009-04-27 03:46:41
http://php5.kiev.ua/manual/ru/function.odbc-field-name.html

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