DocResult::fetchOne

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DocResult::fetchOne — Get one row

说明

public mysql_xdevapi\DocResult::fetchOne ( void ) : array

Fetch one result from a result set.

参数

此函数没有参数。

返回值

The result, as an associative array or NULL if no results are present.

范例

Example #1 mysql_xdevapi\DocResult::fetchOne() 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();

var_dump($result->fetchOne());
?>

以上例程的输出类似于：

array(4) {
  ["_id"]=>
  string(28) "00005b6b53610000000000000125"
  ["age"]=>
  int(42)
  ["job"]=>
  string(6) "Butler"
  ["name"]=>
  string(8) "Reginald"
}