mysqli_warning_count
(PHP 5 CVS only)
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 ( object 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.
Note: For retrieving warning messages you can use the SQL
command SHOW WARNINGS [limit row_count].
Return values
Number of warnings or zero if there are no warnings.
See also
mysqli_errno(), mysqli_error(), mysqli_sqlstate()
Example
Example 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();
?>
Example 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);
?>
The above examples would produce the following output:
Warning (1264): Data truncated for column 'Name' at row
1
