Вы не зарегистрированы? Нажмите здесь для регистрации.
Забыли пароль? Запросите новый здесь.
|
Вы должны авторизироваться, чтобы добавить сообщение.
|
|
|
Последние активные темы форума |
|
mysqli_stmt_affected_rows
(PHP 5) mysqli_stmt_affected_rows (no version information, might be only in CVS) mysqli_stmt->affected_rows -- Returns the total number of rows changed, deleted, or
inserted by the last executed statement
DescriptionПроцедурный стиль : mixed mysqli_stmt_affected_rows ( mysqli_stmt stmt ) Объектно-ориентированный стиль (property): class mysqli_stmt { mixed affected_rows } mysqli_stmt_affected_rows() returns the number of rows affected
by INSERT, UPDATE, or DELETE query. If the last query was invalid, this function will return -1.
The mysqli_stmt_affected_rows() function only works with queries
which update a table. In order to return the number of rows from a SELECT query, use
the mysqli_stmt_num_rows() function instead.
Возвращаемые значенияAn integer greater than zero indicates the number of rows affected or retrieved.
Zero indicates that no records where updated for an UPDATE/DELETE statement, no
rows matched the WHERE clause in the query or that no query has yet been executed.
-1 indicates that the query has returned an error.
Замечание:
If the number of affected rows is greater than maximal PHP int value, the number of
affected rows will be returned as a string value.
Примеры
Пример 1. Объектно-ориентированный стиль
<?php
$mysqli
= new
mysqli
(
"localhost"
,
"my_user"
,
"my_password"
,
"world"
);
/* check connection */
if (
mysqli_connect_errno
()) {
printf
(
"Connect failed: %s\n"
,
mysqli_connect_error
());
exit();
}
/* create temp table */
$mysqli
->
query
(
"CREATE TEMPORARY TABLE myCountry LIKE Country"
);
$query
=
"INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?"
;
/* prepare statement */
if (
$stmt
=
$mysqli
->
prepare
(
$query
)) {
/* Bind variable for placeholder */
$code
=
'A%'
;
$stmt
->
bind_param
(
"s"
,
$code
);
/* execute statement */
$stmt
->
execute
();
printf
(
"rows inserted: %d\n"
,
$stmt
->
affected_rows
);
/* close statement */
$stmt
->
close
();
}
/* close connection */
$mysqli
->
close
();
?>
|
|
Пример 2. Процедурный стиль
<?php
$link
=
mysqli_connect
(
"localhost"
,
"my_user"
,
"my_password"
,
"world"
);
/* check connection */
if (
mysqli_connect_errno
()) {
printf
(
"Connect failed: %s\n"
,
mysqli_connect_error
());
exit();
}
/* create temp table */
mysqli_query
(
$link
,
"CREATE TEMPORARY TABLE myCountry LIKE Country"
);
$query
=
"INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?"
;
/* prepare statement */
if (
$stmt
=
mysqli_prepare
(
$link
,
$query
)) {
/* Bind variable for placeholder */
$code
=
'A%'
;
mysqli_stmt_bind_param
(
$stmt
,
"s"
,
$code
);
/* execute statement */
mysqli_stmt_execute
(
$stmt
);
printf
(
"rows inserted: %d\n"
,
mysqli_stmt_affected_rows
(
$stmt
));
/* close statement */
mysqli_stmt_close
(
$stmt
);
}
/* close connection */
mysqli_close
(
$link
);
?>
|
|
Результат выполнения данного примера:
|
· Гостей: 18
· Пользователей: 0
· Всего пользователей: 453
· Новый пользователь: ZDA
|
|