Result::getWarningsCount

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Result::getWarningsCount — Get warning count from last operation

说明

public mysql_xdevapi\Result::getWarningsCount ( void ) : integer

Retrieve the number of warnings from the last Result operation.

参数

此函数没有参数。

返回值

The number of warnings generated by the last operation, or FALSE if the result set is empty or there are no warnings.

范例

Example #1 mysql_xdevapi\RowResult::getWarningsCount() example

<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");

$session->sql("DROP DATABASE IF EXISTS foo")->execute();
$session->sql("CREATE DATABASE foo")->execute();
$session->sql("CREATE TABLE foo.test_table(x int)")->execute();

$schema = $session->getSchema("foo");
$table  = $schema->getTable("test_table");

$table->insert(['x'])->values([1])->values([2])->execute();

$res = $table->select(['x/0 as bad_x'])->execute();

echo $res->getWarningsCount();
?>

以上例程的输出类似于：

2