mysql_field_name
I spent a good deal of time trying to get the example to work, but the example does not work.
To do what the exaple is trying to do, you would need to use mysql_data_seek
assume we have table named testing which contains
id name
1 Hassan
2 Jack
3 Rose
---------------
Here is an expample that will do the above example.
Since I am more comfortable in a OOP setting, I used mysql_fetch_object
<?php
require("myConnenctionFile.php");
$sql="SELECT * from testing";
$result=mysql_query($sql);
$row = mysql_fetch_object($result);
echo $row->id . ' ' . $row->name; // Output is (1 Hassan)
mysql_data_seek($result,2);
$row = mysql_fetch_object($result);
echo $row->id . ' ' . $row->name; // Output is (3 Rose)
echo "<BR><BR>";
?>
mysql_field_seek
(PHP 4, PHP 5)
mysql_field_seek — Stabilește indicatorul rezultatului la deplasamentul câmpului specificat
Descrierea
bool mysql_field_seek
( resource
$result
, int $field_offset
)Trece la deplasamentul câmpului specificat. Dacă următorul apel la mysql_fetch_field() nu include un deplasament al câmpului, deplasamentul câmpului specificat în mysql_field_seek() va fi întors.
Parametri
-
result -
Rezultatul de tip resource, care este evaluat. Acest rezultat provine de la apelul funcției mysql_query ().
-
field_offset -
Deplasamentul numeric al câmpului.
field_offsetîncepe de la 0. Dacăfield_offsetnu există, se generează de asemenea o eroare de nivelE_WARNING.
Valorile întoarse
Întoarce valoarea TRUE în cazul
succesului sau FALSE în cazul eșecului.
Vedeți de asemenea
- mysql_fetch_field() - Get column information from a result and return as an object
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User Contributed Notes
mysql_field_seek - [4 notes]
chris at igwsolutions dot com ¶
5 years ago
adrien dot gibrat at gmail dot com ¶
4 years ago
Not dumb at all!!
It means that "mysql_field_seek" and "mysql_data_seek" are moving the same cursor... through the rows and columns of the result resource.
Also means that the cursor goes to a new row when it reach a final field(aka column), by exemple while looping with "mysql_fetch_field".
Calling "mysql_fetch_object", "mysql_fetch_array", "mysql_fetch_assoc"
and "mysql_fetch_row" seems to place the cursor at the end of the line.
So calling "mysql_fetch_field" without a field index, just after that, will return false.
Hassan Kazem ¶
5 years ago
an example of this function
assume we have table1 which contains
ID Name
1 Hassan
2 Jack
3 Rose
---------------
<?php
mysql_connect("sql.server.com", "username", "password") or die(mysql_error());
mysql_select_db("database") or die(mysql_error());
$sql="SELECT * from table1";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
echo $row['ID'] . ' ' . $row['Name']; // Output is (1 Hassan)
mysql_field_seek($result,2);
echo $row['ID'] . ' ' . $row['Name']; // Output is (3 Rose)
?>
---------------
// You can see that the seek command forwarded the pointer one step and skipped row number 2
poulpillusion at free dot fr ¶
6 years ago
A dumb comment... but it may save people some time :
mysql_field_seek != mysql_data_seek
In order to fetch again the results of a resource result from the beginning, you will use mysql_data_seek(id, 0)