[quote]
WARNING:
PHP 4.3.4 introduced a BUG.
if the DB has: '' (empty string)
this function will return: ' ' (string with 1 space)
see: http://bugs.php.net/bug.php?id=26315
[/quote]
the same version PHP 5.2.0
(PHP 4 >= 4.2.0, PHP 5, PECL odbtp >= 1.1.1)
mssql_fetch_assoc — Devuelve un array asociativo con la fila actual en el resultado del MS SQL Server
Esta función está OBSOLETA en PHP 7.0.0.
Las alternativas a esta función son:
$result_id
) : array
Devuelve un array asociativo correspondiente a la fila leída y desplaza
el apuntador de datos interno hacia adelante. mssql_fetch_assoc() es
equivalente a llamar a mssql_fetch_array() con el valor
MSSQL_ASSOC
para el segundo parámetro opcional.
result_id
El identificador del resultado que está siendo evaluado. Este resultado proviene de una llamada a mssql_query().
Devuelve un array asociativo correspondiente a la fila leída, o
FALSE
si no hay más filas.
Ejemplo #1 mssql_fetch_assoc() example
<?php
// Envía una consulta a MSSQL
$query = mssql_query('SELECT [username], [name] FROM [php].[dbo].[userlist]');
// Verifica si había registros
if (!mssql_num_rows($query)) {
echo 'No se encontraron registros';
}
else
{
// Muestra una bonita lista de usuarios con el formato:
// * nombre (nombre de usuario)
echo '<ul>';
while ($row = mssql_fetch_assoc($query)) {
echo '<li>' . $row['name'] . ' (' . $row['username'] . ')</li>';
}
echo '</ul>';
}
// Libera el recurso
mssql_free_result($query);
?>
[quote]
WARNING:
PHP 4.3.4 introduced a BUG.
if the DB has: '' (empty string)
this function will return: ' ' (string with 1 space)
see: http://bugs.php.net/bug.php?id=26315
[/quote]
the same version PHP 5.2.0
WARNING: as of PHP 4.3.2
The keys in the array will only contain the 1st 30 characters of the column name if you have column names longer than that.
With the code mentioned above and in relation to a MSSQL query.
When using the following statements to retrieve dat "fetch_assoc" then running a split statement PHP it then into a array it will not pass the data retrieved will show correctly in a XML document created by the DOM object.
<?php
require("phpsqlajax_dbinfo.php");
// Start XML file, create parent node
$dom = new DOMDocument("1.0");
$node = $dom->createElement("markers");
$parnode = $dom->appendChild($node);
// Opens a connection to a DreameyeOne server
$connection=mssql_connect ("ELF\ELF", $username, $password);
if (!$connection) {
die('Not connected : ' . mssql_error());
}
// Set the active DreameyOne database
$db_selected = mssql_select_db($database, $connection);
if (!$db_selected) {
die ('Can\'t use db : ' . mssql_error());
}
// Select all the rows in the markers table
$query = "SELECT msg FROM ozekimessagein ORDER BY senttime DESC";
$result = mssql_query($query);
if (!$result) {
die('Invalid query: ' . mssql_error());
}
header("Content-type: text/xml");
// Iterate through the rows, adding XML nodes for each
while ($row = @mssql_fetch_assoc($result)) {
list ($vehicleID,$long,$lat) = split(',',$row);
// ADD TO XML DOCUMENT NODE
$node = $dom->createElement("marker");
$node = $dom->createElement("marker");
$newnode = $parnode->appendChild($node);
$newnode->setAttribute("VehicleID:",$vehicleID);
$newnode->setAttribute("lat",$lat);
$newnode->setAttribute("long",$long);
}
echo $dom->saveXML();
?>
Merlinman
WARNING:
PHP 4.3.4 introduced a BUG.
if the DB has: '' (empty string)
this function will return: ' ' (string with 1 space)
see: http://bugs.php.net/bug.php?id=26315
Beware when using mssql_fetch_assoc() to return data pulled in from joined tables; if the tables have the same column names, the column mentioned last will overwrite the prior one when populating the assoc.
Example:
<?
$result = mssql_query('SELECT articles.id, issues.id FROM articles, issues WHERE articles.pub_date = issues.pub_date');
$record = mssql_fetch_assoc($result);
print_r($record);
/*
Prints:
Array
(
[id] => 123
)
*/
?>
The 30 character field name limit is still an issue as of PHP 5.1.6, at least running under IIS.
regarding 'The 30 character field name limit is still an issue'
Thought about using shorter column names and using the description to give more info regarding the column.
as to the
$result = mssql_query('SELECT articles.id, issues.id FROM articles, issues WHERE articles.pub_date = issues.pub_date');
try this
$result = mssql_query('SELECT articles.id as aid, issues.id as iid FROM articles, issues WHERE articles.pub_date = issues.pub_date');
We are running FreeTDS on a Linux Apache / PHP server and encountered the following error when calling mssql_fetch_assoc()
Fatal error: Call to undefined function mssql_fetch_assoc()
We were confused because *some* of the mssql commands worked, such as mssql_connect and mssql_fetch_array. The trick to make mssql_fetch_assoc() work lies in configuring FreeTDS. We had to change the statement to contain the --enable-msdblib switch:
./configure --enable-msdblib
We then recompiled PHP to include --with-mssql=/path/to/freetds and finally mssql_fetch_assoc() began working properly.