Mssql 函数
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PHP手册

mssql_bind

(PHP 4 >= 4.0.7, PHP 5, PECL odbtp >= 1.1.1)

mssql_bind — Adds a parameter to a stored procedure or a remote stored procedure

说明

bool mssql_bind ( resource $stmt , string $param_name , mixed &$var , int $type [, bool $is_output = false [, bool $is_null = false [, int $maxlen = -1 ]]] )

Binds a parameter to a stored procedure or a remote stored procedure.

参数

stmt

Statement resource, obtained with mssql_init().

param_name

The parameter name, as a string.

Note:

You have to include the @ character, like in the T-SQL syntax. See the explanation included in mssql_execute().

var

The PHP variable you'll bind the MSSQL parameter to. It is passed by reference, to retrieve OUTPUT and RETVAL values after the procedure execution.

type

One of: SQLTEXT, SQLVARCHAR, SQLCHAR, SQLINT1, SQLINT2, SQLINT4, SQLBIT, SQLFLT4, SQLFLT8, SQLFLTN.

is_output

Whether the value is an OUTPUT parameter or not. If it's an OUTPUT parameter and you don't mention it, it will be treated as a normal input parameter and no error will be thrown.

is_null

Whether the parameter is NULL or not. Passing the NULL value as var will not do the job.

maxlen

Used with char/varchar values. You have to indicate the length of the data so if the parameter is a varchar(50), the type must be SQLVARCHAR and this value 50.

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE.

范例

Example #1 mssql_bind() example

<?php
// Connect to MSSQL and select the database
mssql_connect('KALLESPC\SQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php');

// Create a new stored prodecure
$stmt = mssql_init('NewUserRecord');

// Bind the field names
mssql_bind($stmt, '@username',  'Kalle',  SQLVARCHAR,  false,  false,  60);
mssql_bind($stmt, '@name',      'Kalle',  SQLVARCHAR,  false,  false,  60);
mssql_bind($stmt, '@age',       19,       SQLINT1,     false,  false,   3);

// Execute
mssql_execute($stmt);

// Free statement
mssql_free_statement($stmt);
?>

参见

Mssql 函数
在线手册：中文 英文
PHP手册
PHP手册 - N: Adds a parameter to a stored procedure or a remote stored procedure

用户评论:

asimonassi (17-Jun-2011 03:51)

In order to bind DATETIME, i suggest to convert the date to double, then use SQLFLT8 instead of SQLVARCHAR.

In SQL Server Datetime is a standard double. The integer part represent the number of days since 1-1-1900 and the fractional part represent the fraction of the day (e.g: 0.5 means noon, 0.75 means 6 PM).

Using SQLVARCHAR may lead to errors depending on the local server config.

<?php
function PhpTimeToOLEDateTime($timestamp)
{
        $a_date = getdate ($timestamp);
        $year= $a_date['year']; //this year
        $partial_days = ($year-1900)*365;//days elapsed since 1-1-1900
        //let's calculate how many 29 february from 1900 to first day on this year
        $partial_days +=(int)(($year-1) / 4); //each 4 years a leap year since year 0
        $partial_days -= (int)(($year-1) / 100); //each 100 years skip a leap
        $partial_days += (int)(($year-1) / 400); //each 400 years add a leap
        $partial_days -= 460; //459 leap years before 1900 + 1 for math (year 0 does not exist)
        $partial_days += $a_date['yday'];

        $seconds = $a_date['hours'] * 3600;
        $seconds += $a_date['minutes'] * 60;
        $seconds += $a_date['seconds'];

        $d = (double) $partial_days;
        $d +=  ((double)$seconds)/86400.0;

        return $d;
}
?>

Sample binding

<?php
$now = PhpTimeToOLEDateTime(time());
mssql_bind($proc, "@dateparam", $now, SQLFLT8, false);
?>

brad at foreverybody dot com (16-Jul-2010 07:39)

if you are experiencing difficulties binding an empty string because it is being converted to NULL by your driver try the following:

<?php
if($var === ''){
            //stupid hack to prevent mssql driver from converting empty strings to null. now they arent empty strings but they will get trimmed down to legth 0 ;-)
        $var = ' ';
        $type = SQLVARCHAR;
        $isNull = false;
        $maxLen = 0;
    }

mssql_bind($stmt, $param_name, $var, $type, $is_output,$isNull,  $maxLen);
?>

alvaro at demogracia dot com (24-Nov-2009 11:12)

There isn't a bind function for regular SQL queries; not even a escape function. I found this nice piece of code:

<?php
function mssql_escape($data) {
    if(is_numeric($data))
        return $data;
    $unpacked = unpack('H*hex', $data);
    return '0x' . $unpacked['hex'];
}
?>

http://stackoverflow.com/questions/574805/

Anonymous (17-Nov-2009 06:35)

I found SQLVARCHAR better for datetime.

It was performing some other non-strtotime() convertions when it was set to SQLINT4

valerio dot della-porta dot com (22-Apr-2009 10:00)

Use:
SQLVARCHAR for binary
SQLINT4 for datetime
SQLFLT8 for decimal
SQLVARCHAR for image
SQLFLT8 for money
SQLCHAR for nchar
SQLTEXT for ntext
SQLFLT8 for numeric
SQLVARCHAR for nvarchar
SQLFLT8 for real
SQLINT4 for smalldatetime
SQLFLT8 for smallmoney
SQLVARCHAR for sql_variant
SQLINT4 for timestamp
SQLVARCHAR for varbinary

Anonymous (25-Jan-2009 01:08)

<?php
//IP Address, if instance then IP\Instance
$server = 'a.b.c.d';
$link = mssql_connect($server, 'sql_user', 'sql_user_pass');

//Select DB
$dbn = 'dbName';
mssql_select_db($dbn);

//Define Procedure
$lala = 'tstProc';
$proc = mssql_init($lala, $link);

//Define Parameters
$parm1 = 'one';
$parm2 = 'two';
$parm3 = 'three';

//Load Parameters
mssql_bind($proc, '@num', $parm1, SQLCHAR, false, false, 10);
mssql_bind($proc, '@naamen', $parm2, SQLCHAR, false, false, 10);
mssql_bind($proc, '@desci', $parm3, SQLCHAR, false, false, 10);

//Execute Procedure
mssql_execute($proc);

//Free Memory
mssql_free_statement($proc);

//...and whenever the wolf did howl, all the sheep had to do was bleat!
?>

Anonymous (08-Jun-2008 06:52)

for type :

SQLCHAR     DBCHAR
SQLVARCHAR     DBCHAR
SQLTEXT     DBCHAR
SQLBINARY     DBBINARY
SQLVARBINARY     DBBINARY
SQLIMAGE     DBBINARY
SQLINT1     DBTINYINT
SQLINT2     DBSMALLINT
SQLINT4     DBINT
SQLFLT4     DBFLT4
SQLFLT8     DBFLT8
SQLBIT     DBBIT
SQLMONEY4     DBMONEY4
SQLMONEY     DBMONEY
SQLDATETIM4     DBDATETIM4
SQLDATETIME     DBDATETIME
SQLDECIMAL     DBDECIMAL
SQLNUMERIC     DBNUMERIC

source : http://msdn.microsoft.com/en-us/library/aa937008(SQL.80).aspx

daryl dot mitchell at usask dot ca (05-Dec-2007 05:56)

I had the same problem but the posted solution above just produced null results.  Here's a modification that ended up working:

#THIS SUCCEEDS, USES A REFERENCE
mssql_bind($proc, '@'.$key, $sp_parms[$key], SQLVARCHAR)
or die("Unable to bind $sp_name:$key<br>".mssql_get_last_message());

fheald at buzztime dot com (06-Aug-2007 08:27)

mssql_bind binds by reference, not by value, even on input parameters.  Improper binding can cause strange errors; in my case "Error converting data type varchar to int"

--SAMPLE STORED PROCEDURE
CREATE Procedure [dbo].[myproc]
(
    @one VARCHAR(10) = 'n1',
    @two VARCHAR(10) = 'n2',
    @three VARCHAR(10) = 'n3',
    @four VARCHAR(10) = 'n4',
    @five VARCHAR(10) = 'n5'
)
AS
BEGIN
SET NOCOUNT ON;

SELECT
    @one AS 'one',
    @two AS 'two',
    @three AS 'three',
    @four AS 'four',
    @five AS 'five'
END

//SAMPLE PHP CALL
$sp_name = 'mydb.dbo.myproc';
$proc = mssql_init($sp_name);
$sp_parms->one = 'one';
$sp_parms->two = 'two';
$sp_parms->three = 'three';

foreach ($sp_parms as $key=>$parm) {
    #THIS FAILS, because it's binding values!
    #mssql_bind($proc, '@'.$key, $parm, SQLVARCHAR)
    #    or die("Unable to bind $sp_name:$key<br>".mssql_get_last_message());
    #THIS SUCCEEDS, USES A REFERENCE
    mssql_bind($proc, '@'.$key, $sp_parms->$key, SQLVARCHAR)
        or die("Unable to bind $sp_name:$key<br>".mssql_get_last_message());
}