Note that the second parameter is the same as the msql version of this function (http://www.php.net/manual/en/function.msql-fetch-array.php) with the constants (MSQL_ASSOC, MSQL_NUM, and MSQL_BOTH) changing to MSSQL_.
Also note that if you don't specify this parameter you'll get both the numbers and column names, which can cause some frustration.
PHP - Manual: mssql_fetch_array
2024-11-15
mssql_fetch_array
(PHP 4, PHP 5, PECL odbtp >= 1.1.1)
mssql_fetch_array — Fetch a result row as an associative array, a numeric array, or both
Warning
This function was REMOVED in PHP 7.0.0.
Alternatives to this function include:
说明
mssql_fetch_array
( resource
$result
[, int $result_type = MSSQL_BOTH
] ) : arraymssql_fetch_array() is an extended version of mssql_fetch_row(). In addition to storing the data in the numeric indices of the result array, it also stores the data in associative indices, using the field names as keys.
An important thing to note is that using mssql_fetch_array() is NOT significantly slower than using mssql_fetch_row(), while it provides a significant added value.
参数
-
result -
The result resource that is being evaluated. This result comes from a call to mssql_query().
-
result_type -
The type of array that is to be fetched. It's a constant and can take the following values:
MSSQL_ASSOC,MSSQL_NUM, andMSSQL_BOTH.
返回值
Returns an array that corresponds to the fetched row, or FALSE if there
are no more rows.
范例
Example #1 mssql_fetch_array() example
<?php
// Send a select query to MSSQL
$query = mssql_query('SELECT [username], [name] FROM [php].[dbo].[userlist]');
// Check if there were any records
if (!mssql_num_rows($query)) {
echo 'No records found';
} else {
// The following is equal to the code below:
//
// while ($row = mssql_fetch_row($query)) {
while ($row = mssql_fetch_array($query, MSSQL_NUM)) {
// ...
}
}
// Free the query result
mssql_free_result($query);
?>
注释
Note: 此函数返回的字段名大小写敏感。
Note: 此函数将 NULL 字段设置为 PHP
NULL值。
add a note
User Contributed Notes 13 notes
shaver at qspeed dot com ¶
16 years ago
blood - demon at gmx dot net ¶
11 years ago
Note that if you fetch varchar fields larger than 255 letters the result will be cut off at 255 letters.
To prevent this you have to do a CONVERT(TEXT,data_field) for this fields in your select clause.
archwisp at gmail dot com ¶
14 years ago
[Editor's Note: NULLs *are* distinguishable from 0. See the manual section on comparison operators. ]
microsoft sql 2000 server
php running on windows 2000
Using the $row = mssql_fetch_array($result)
A null value will return 0, this is a problem if you are using 0 and some identifier for a value. you should convert all nulls to something like -1 or "NO VALUE"
******
After extensive testing, the above statements both seem to be true. You *can* distinguish between 0 and null values in PHP; however, the mssql_fetch_array function does not set null colums to the php NULL value.
if ($row['Null_Column'] === 0) { print('pass'); }
A null column passes the above test. Seems to be a bug in the function.
flatcable2000 at yahoo dot com ¶
16 years ago
Apparently php 4.0.6 does not support the second parameter. When used the error sounds
"Wrong parameter count for mssql_fetch_array"
Bryan ¶
11 years ago
Calling this function with the option second parameter is causing a "Wrong parameter count" message. If you run into this problem, you can get the same effect by calling different functions:
mssql_fetch_array: MSSQL_BOTH
mssql_fetch_assoc: MSSQL_ASSOC
mssql_fetch_row: MSSQL_NUM
php at bricology dot com ¶
10 years ago
I just spent a few hours trying to get ntext data with this function, CASTing and CONVERTing every which way, and scouring the 'net. Nothing worked, I just got a NULL.
Then on a whim I tried it with mssql_fetch_row instead, and that DOES work.
chu61 dot tw at gmail dot com ¶
11 years ago
To write Unicode (nvarchar) to SQL2000/2005 use PHP
用PHP在SQL Server 存取Unicode資料
----------------------------------------------
Let's assume, we have following data table, that allows us to store unicode values (using UCS-2 encoding):
create table mytable (
myfield nvarchar (100) null
);
Below is the code to work with:
<?php
$link = mssql_connect('dbhost', 'username', 'password');
mssql_select_db('database', $link);
// sending data to database
$utf8 = 'some unicode UTF-8 data'; // some Greek text for example ;)
$ucs2 = iconv('UTF-8', 'UCS-2LE', $utf8);
// converting UCS-2 string into "binary" hexadecimal form
$arr = unpack('H*hex', $ucs2);
$hex = "0x{$arr['hex']}";
// IMPORTANT!
// please note that value must be passed without apostrophes
// it should be "... values(0x0123456789ABCEF) ...", not "... values('0x0123456789ABCEF') ..."
mssql_query("insert into mytable (myfield) values ({$hex})", $link);
// retrieving data from database
// IMPORTANT!
// please note that "varbinary" expects number of bytes
// in this example it must be 200 (bytes), while size of field is 100 (UCS-2 chars)
$result = mssql_query("select convert(varbinary(200), myfield) from mytable", $link);
while (($row = mssql_fetch_array($result, MSSQL_BOTH)))
{
// we get data in UCS-2
// I use UTF-8 in my project, so I encode it back
echo(iconv('UCS-2LE', 'UTF-8', $row['myfield']));
}
mssql_free_result($result);
mssql_close($link);
?>
gillis dot phpmanual at no-spam-for-megillis dot fi ¶
13 years ago
Allthough probably obvious to people who have used the functions available to other databases it during writing is not present in this entry that result type can be entered as MSSQL_ASSOC or MSSQL_NUM, and the default value when nothing entered being MSSQL_BOTH
//Gillis Danielsen
archwisp at gmail dot com ¶
14 years ago
In response to my last post:
After further testing, it appears as though the null column bug only affects windows installations. On my linux installation using freetds-0.61.2, the function behaves properly. It must exist either in the php_mssql.dll or the Microsoft connection libraries. And since I use this functionality through ASP as well (which uses the Microsoft connection libraries), it would lead me to believe that it's an issue within the php_mssql.dll.
hackajar matt yahoo trot com ¶
15 years ago
from php-dev mailing list article -
#26012 [Bgs]: mssql_fetch_array
"Previously mssql data was always rtrimed, however that's wrong because it modifies the original data. This caused a problem for people who needed those trailing space. Ultimately, the job of database extension is to fetch the data as is (like other db extensions already do) and not to mangle it in any way."
moving from <4.3.4 to a higher version you will have this now:
$query = "Select dumb_spaces from dbo.table where weak_sause = 'true'";
$result = mssql_query($query) or die("Spicy Sause! Query = $query");
while($line = mssql_fetch_array($result, MSSQL_ASSOC) {
foreach($line as $bs_trim) {
//Trim whitespace from end of query
$bs_trim = rtrim($bs_trim);
echo "Clean!".$bs_trim;
}
}
ask at manniac dot de ¶
17 years ago
It seems that this function creates arrays wich keys can not be longer than 30 chars. So when you're having a DB-field like "this_is_a_very_long_db_field_name"
its array-key is cut off after 30 chars and you will have to access the value with
rs["this_is_a_very_long_db_field_n"]
herriedm at yahoo dot com ¶
15 years ago
[Editor's Note: NULLs *are* distinguishable from 0. See the manual section on comparison operators. ]
microsoft sql 2000 server
php running on windows 2000
Using the $row = mssql_fetch_array($result)
A null value will return 0, this is a problem if you are using 0 and some identifier for a value. you should convert all nulls to something like -1 or "NO VALUE"
Derek Ethier ¶
15 years ago
The array_walk function is also useful for stripping the whitespace returned in an mssql_query.
function modify_field(&$array) {
$array = trim($array);
}
$query = "select * from dbo.table where value = '0'";
$result = mssql_query($query) or die;
while ($row = mssql_fetch_array($result)) {
// This will call the above function.
array_walk($row, 'modify_field');
array_push($eventresults, $row);
}
An added benefit is that you can expand the modify_field function to handled unexpected returned column data.
官方地址：https://www.php.net/manual/en/function.mssql-fetch-array.php
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