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CollectionModify::bind — Bind value to query placeholder
$placeholder_values): mysql_xdevapi\CollectionModifyBind a parameter to the placeholder in the search condition of the modify operation.
The placeholder has the form of :NAME where ':' is a common prefix that must always exists before any NAME where NAME is the name of the placeholder. The bind method accepts a list of placeholders if multiple entities have to be substituted in the search condition of the modify operation.
placeholder_valuesPlaceholder values to substitute in the search condition. Multiple values are allowed and have to be passed as an array of mappings PLACEHOLDER_NAME->PLACEHOLDER_VALUE.
A CollectionModify object that can be used to execute the command, or to add additional operations.
示例 #1 mysql_xdevapi\CollectionModify::bind() 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");
$result = $collection
->add(
'{"name": "Bernie",
"traits": ["Friend", "Brother", "Human"]}')
->execute();
$collection
->modify("name = :name")
->bind(['name' => 'Bernie'])
->arrayAppend('traits', 'Happy')
->execute();
$result = $collection
->find()
->execute();
print_r($result->fetchAll());
?>以上示例的输出类似于：
Array
(
[0] => Array
(
[_id] => 00005b6b53610000000000000110
[name] => Bernie
[traits] => Array
(
[0] => Friend
[1] => Brother
[2] => Human
[3] => Happy
)
)
)