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PHP. Руководство по PHP. 2005

mysqli_warning_count

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mysqli_warning_count

(PHP 5)mysqli_warning_count

(no version information, might be only in CVS)mysqli->warning_count -- Returns the number of warnings from the last query for the given link

Description

Procedural style:int mysqli_warning_count (mysqli link)

Object oriented style (property):class mysqli {

int warning_count

}

mysqli_warning_count() returns the number of warnings

from the last query in the connection represented by the

link parameter.

Замечание:

For retrieving warning messages you can use the SQL command

SHOW WARNINGS [limit row_count].

Возвращаемые значения

Number of warnings or zero if there are no warnings.

Смотрите также

mysqli_errno(),

mysqli_error() и

mysqli_sqlstate().

Примеры

Пример 1. Object oriented style

<?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();

}

$mysqli->query("CREATE TABLE myCity LIKE City");

/* a remarkable city in Wales */

$query = "INSERT INTO myCity (CountryCode, Name) VALUES('GBR',

'Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch')";

$mysqli->query($query);

if ($mysqli->warning_count){

if ($result = $mysqli->query("SHOW WARNINGS")){

$row = $result->fetch_row();

printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);

$result->close();

}

}

/* close connection */

$mysqli->close();

?>

Пример 2. Procedural style

<?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();

}

mysqli_query($link, "CREATE TABLE myCity LIKE City");

/* a remarkable long city name in Wales */

$query = "INSERT INTO myCity (CountryCode, Name) VALUES('GBR',

'Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch')";

mysqli_query($link, $query);

if (mysqli_warning_count($link)){

if ($result = mysqli_query($link, "SHOW WARNINGS")){

$row = mysqli_fetch_row($result);

printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);

mysqli_free_result($result);

}

}

/* close connection */

mysqli_close($link);

?>

Результат выполнения данного примера:

Warning (1264): Data truncated for column 'Name' at row 1

Пред.

Начало

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mysqli_use_result

Уровень выше

Ncurses Terminal Screen Control Functions

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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