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- Mysql_xdevapi
- mysql_xdevapi\DocResult
DocResult::getWarningsCount
(No version information available, might only be in Git)
DocResult::getWarningsCount — Get warning count from last operation
说明
public mysql_xdevapi\DocResult::getWarningsCount(): intReturns the number of warnings raised by the last operation. Specifically, these warnings are raised by the MySQL server.
参数
此函数没有参数。
返回值
The number of warnings from the last operation.
范例
示例 #1 mysql_xdevapi\DocResult::getWarningsCount() example
<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
$session->sql("CREATE DATABASE addressbook")->execute();
$schema = $session->getSchema("addressbook");
$create = $schema->createCollection("people");
$create->add('{"name": "Alfred", "age": 18, "job": "Butler"}')->execute();
$create->add('{"name": "Reginald", "age": 42, "job": "Butler"}')->execute();
// ...
$collection = $schema->getCollection("people");
// Yields a DocResult object
$result = $collection
->find('job like :job and age > :age')
->bind(['job' => 'Butler', 'age' => 16])
->sort('age desc')
->execute();
if (!$result->getWarningsCount()) {
echo "There was an error:\n";
print_r($result->getWarnings());
exit;
}
var_dump($result->fetchOne());
?>
以上例程的输出类似于：
array(4) {
["_id"]=>
string(28) "00005b6b53610000000000000135"
["age"]=>
int(42)
["job"]=>
string(6) "Butler"
["name"]=>
string(8) "Reginald"
}
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/mysql-xdevapi-docresult.getwarningscount.php