MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
CollectionModify::limit
Limit number of modified documents
public mysql_xdevapi\CollectionModify mysql_xdevapi\CollectionModify::limit(int rows);
Limit the number of documents modified by this operation. Optionally combine with skip() to define an offset value.
rows
The maximum number of documents to modify.
A CollectionModify object.
Example 5.45 mysql_xdevapi\CollectionModify::limit
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"); $collection = $schema->createCollection("people"); $collection->add('{"name": "Fred", "age": 21, "job": "Construction"}')->execute(); $collection->add('{"name": "Wilma", "age": 23, "job": "Teacher"}')->execute(); $collection->add('{"name": "Betty", "age": 24, "job": "Teacher"}')->execute(); $collection ->modify("job = :job") ->bind(['job' => 'Teacher']) ->set('job', 'Principal') ->limit(1) ->execute(); $result = $collection ->find() ->execute(); print_r($result->fetchAll()); ?>
The above example will output something similar to:
Array ( [0] => Array ( [_id] => 00005b6b53610000000000000118 [age] => 21 [job] => Construction [name] => Fred ) [1] => Array ( [_id] => 00005b6b53610000000000000119 [age] => 23 [job] => Principal [name] => Wilma ) [2] => Array ( [_id] => 00005b6b5361000000000000011a [age] => 24 [job] => Teacher [name] => Betty ) )