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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

Процедурный стиль:

int mysqli_warning_count ( mysqli link )

Объектно-ориентированный стиль (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.

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();

}




$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. 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();

}




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

Все функции PHP:

mysqli_warning_count

Description

Возвращаемые значения

Смотрите также

Примеры