PHP Unconference Europe 2015

mssql_fetch_assoc

(PHP 4 >= 4.2.0, PHP 5, PECL odbtp >= 1.1.1)

mssql_fetch_assoc結果の現在行を連想配列として返す

説明

array mssql_fetch_assoc ( resource $result_id )

取得した行に対応する連想配列を返し、内部データポインタをひとつ進めます。 mssql_fetch_assoc() は、 mssql_fetch_array() の二番目のオプションパラメータに MSSQL_ASSOC を指定してコールするのと同等です。

パラメータ

result_id

処理対象となる結果リソース。これは mssql_query() のコールによって取得します。

返り値

取得した行に対応する連想配列を返します。もう行がない場合は FALSE を返します。

例1 mssql_fetch_assoc() の例

<?php
// select クエリを MSSQL に送信します
$query mssql_query('SELECT [username], [name] FROM [php].[dbo].[userlist]');

// レコードが存在するかどうかを調べます
if (!mssql_num_rows($query)) {
    echo 
'No records found';
}
else
{
    
// ユーザー一覧を
    // * name (username) 形式で出力します

    
echo '<ul>';

    while (
$row mssql_fetch_assoc($query)) {
        echo 
'<li>' $row['name'] . ' (' $row['username'] . ')</li>';
    }

    echo 
'</ul>';
}

// 結果を開放します
mssql_free_result($query);
?>

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User Contributed Notes 8 notes

up
1
pegas1981
7 years ago
[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
up
0
simonh at dreameyemedia dot com
5 years ago
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
up
0
Anonymous
7 years ago
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');
up
0
jbarker at erepublic dot com
7 years ago
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
)

*/
?>
up
0
brandonkirsch at uses dot gmail dot domain
7 years ago
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.
up
0
ben at thelocust dot org
7 years ago
The 30 character field name limit is still an issue as of PHP 5.1.6, at least running under IIS.
up
0
electricsurfer.com
10 years ago
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
up
0
php at electricsurfer dot com
11 years ago
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.
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