PHP Manual
MysqlndUhConnection
Returns the number of warnings from the last query for the given link

MysqlndUhConnection::getWarningCount

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::getWarningCount — Returns the number of warnings from the last query for the given link

说明

public MysqlndUhConnection::getWarningCount ( mysqlnd_connection $connection ) : int

Returns the number of warnings from the last query for the given link.

参数

connection: Mysqlnd connection handle. Do not modify!

返回值

Number of warnings.

范例

Example #1 MysqlndUhConnection::getWarningCount() example

 <?php
class proxy extends MysqlndUhConnection {
 public function getWarningCount($res) {
  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
  $ret = parent::getWarningCount($res);
  printf("%s returns %s\n", __METHOD__, var_export($ret, true));
  return $ret;
 }
}
mysqlnd_uh_set_connection_proxy(new proxy());

$mysqli = new mysqli("localhost", "root", "", "test");
var_dump($mysqli->warning_count);
?>

以上例程会输出：

proxy::getWarningCount(array (
  0 => NULL,
))
proxy::getWarningCount returns 0
int(0)

参见

mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
mysqli_warning_count() - Returns the number of warnings from the last query for the given link