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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.
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
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