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CollectionModify::limit

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CollectionModify::limit โ€” ๅค‰ๆ›ดใ•ใ‚Œใ‚‹ใƒ‰ใ‚ญใƒฅใƒกใƒณใƒˆใฎๆ•ฐใ‚’้™ๅฎšใ™ใ‚‹

่ชฌๆ˜Ž

public mysql_xdevapi\CollectionModify::limit(int $rows): mysql_xdevapi\CollectionModify

ใ“ใฎๆ“ไฝœใซใ‚ˆใฃใฆใ€ๅค‰ๆ›ดใ•ใ‚Œใ‚‹ใƒ‰ใ‚ญใƒฅใƒกใƒณใƒˆใฎๆ•ฐใ‚’้™ๅฎšใ—ใพใ™ใ€‚ ใ‚ชใƒ—ใ‚ทใƒงใƒณใงใ€skip() ใจ็ต„ใฟๅˆใ‚ใ›ใ‚‹ใ“ใจใงใ€ใ‚ชใƒ•ใ‚ปใƒƒใƒˆๅ€คใ‚’ๅฎš็พฉใ—ใพใ™ใ€‚

ใƒ‘ใƒฉใƒกใƒผใ‚ฟ

rows

ๅค‰ๆ›ดใ™ใ‚‹ใƒ‰ใ‚ญใƒฅใƒกใƒณใƒˆใฎๆœ€ๅคงๆ•ฐ

ๆˆปใ‚Šๅ€ค

CollectionModify ใ‚ชใƒ–ใ‚ธใ‚งใ‚ฏใƒˆใ‚’่ฟ”ใ—ใพใ™ใ€‚

ไพ‹

ไพ‹1 mysql_xdevapi\CollectionModify::limit() ใฎไพ‹

<?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());
?>

ไธŠใฎไพ‹ใฎๅ‡บๅŠ›ใฏใ€ ใŸใจใˆใฐไปฅไธ‹ใฎใ‚ˆใ†ใซใชใ‚Šใพใ™ใ€‚

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
        )
)
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