PHP. Руководство по PHP. 2005 maxdb_stmt_bind_param
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След.
(PECL)maxdb_stmt_bind_param
(no version information, might be only in CVS)stmt->bind_param -- Binds variables to a prepared statement as parameters
Description
Procedural style:bool maxdb_stmt_bind_param (resource stmt, string types, mixed &var1 [, mixed &...])
Object oriented style (method):class stmt {
bool bind_param (array types, mixed &var1 [, mixed &...])
}
maxdb_stmt_bind_param() is used to bind variables for the parameter markers in the SQL statement that was passed to maxdb_prepare() . The string types contains one or more characters which specify the types for the corresponding bind variables.
Variables for SELECT INTO SQL statements can also be bound using maxdb_stmt_bind_param(). Parameters for database procedures can be bound using maxdb_stmt_bind_param(). See the examples how to use maxdb_stmt_bind_param() in this cases.
If a variable bound as INTO variable to a SQL statement was used before, the content of this variable is overwritten by the data of the SELECT INTO statement. A reference to this variable will be invalid after a call to maxdb_stmt_bind_param().
For INOUT parameters of database procedures the content of the bound INOUT variable is overwritten by the output value of the database procedure. A reference to this variable will be invalid after a call to maxdb_stmt_bind_param().
Таблица 1. Type specification chars
Character Description
i corresponding variable has type integer
d corresponding variable has type double
s corresponding variable has type string
b corresponding variable is a blob and will be send in packages
Return values
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
See also
maxdb_stmt_bind_result() , maxdb_stmt_execute() , maxdb_stmt_fetch() , maxdb_prepare() , maxdb_stmt_send_long_data() , maxdb_stmt_errno() , maxdb_stmt_error()
Example
Пример 1. Object oriented style
<?
$maxdb = new maxdb('localhost', 'MONA', 'RED', 'DEMODB');
/*check connection*/
if (maxdb_connect_errno()){
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$maxdb->query ("CREATE TABLE temp.mycity LIKE hotel.city");
$maxdb->query ("INSERT INTO temp.mycity SELECT * FROM hotel.city");
$stmt = $maxdb->prepare("INSERT INTO temp.mycity VALUES (?, ?, ?)");
$stmt->bind_param('sss', $zip, $name, $state);
$zip = '';
$name = 'Georgetown';
$state = 'NY';
/*execute prepared statement*/
$stmt->execute();
printf("%d Row inserted.\n", $stmt->affected_rows);
/*close statement and connection*/
$stmt->close();
/*Clean up table CountryLanguage*/
$maxdb->query("DELETE FROM temp.mycity WHERE name='Georgetown'");
printf("%d Row deleted.\n", $maxdb->affected_rows);
/*close connection*/
$maxdb->close();
?>
Пример 2. Procedural style
<?
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/*check connection*/
if (!$link){
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
maxdb_query ($link, "CREATE TABLE temp.mycity LIKE hotel.city");
maxdb_query ($link, "INSERT INTO temp.mycity SELECT * FROM hotel.city");
$stmt = maxdb_prepare($link, "INSERT INTO temp.mycity VALUES (?, ?, ?)");
maxdb_stmt_bind_param($stmt, 'sss', $zip, $name, $state);
$zip = '';
$name = 'Georgetown';
$state = 'NY';
/*execute prepared statement*/
maxdb_stmt_execute($stmt);
printf("%d Row inserted.\n", maxdb_stmt_affected_rows($stmt));
/*close statement and connection*/
maxdb_stmt_close($stmt);
/*Clean up table CountryLanguage*/
maxdb_query($link, "DELETE FROM temp.mycity WHERE name='Georgetown'");
printf("%d Row deleted.\n", maxdb_affected_rows($link));
/*close connection*/
maxdb_close($link);
?>
The above examples would produce the following output:
1 Row inserted.
1 Row deleted.
Пример 3. Procedural style (SELECT INTO)
<?
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/*check connection*/
if (!$link){
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
/*Performing SQL query*/
$stmt = maxdb_prepare ($link, "SELECT price INTO ? FROM hotel.room where hno = ? and type = ?");
if (!$stmt){
printf ("Prepare failed: %s\n", maxdb_error($link));
}
$hno = "50";
$rtype = "suite";
maxdb_stmt_bind_param($stmt, 'dss', $price, $hno, $rtype);
maxdb_stmt_execute($stmt);
printf ("%f\n", $price);
maxdb_stmt_close ($stmt);
?>
The above examples would produce the following output:
Пример 4. Procedural style (DB procedure)
<?
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/*check connection*/
if (!$link){
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
maxdb_report (MAXDB_REPORT_OFF);
maxdb_query($link,"DROP DBPROC test_proc");
maxdb_report (MAXDB_REPORT_ERROR);
$query = "create dbproc test_proc (INOUT e_text char(72)) AS select * from SYSDBA.DUAL; fetch into :e_text;";
maxdb_query($link, $query);
/*Performing SQL query*/
$stmt = maxdb_prepare ($link, "CALL test_proc (?)");
if (!$stmt){
printf ("Prepare failed: %s\n", maxdb_error($link));
}
maxdb_stmt_bind_param($stmt, 's', $result);
maxdb_stmt_execute($stmt);
printf ("%s\n", $result);
maxdb_stmt_close ($stmt);
?>
The above examples would produce the following output:
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След.
maxdb_stmt_affected_rows
Уровень выше
maxdb_stmt_bind_result
