CollectionFind::bind

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CollectionFind::bindBind value to query placeholder

说明

public mysql_xdevapi\CollectionFind::bind ( array $placeholder_values ) : mysql_xdevapi\CollectionFind

It allows the user to bind a parameter to the placeholder in the search condition of the find operation. The placeholder has the form of :NAME where ':' is a common prefix that must always exists before any NAME, NAME is the actual name of the placeholder. The bind function accepts a list of placeholders if multiple entities have to be substituted in the search condition.

参数

placeholder_values

Values to substitute in the search condition; multiple values are allowed and are passed as an array where "PLACEHOLDER_NAME => PLACEHOLDER_VALUE".

返回值

A CollectionFind object, or chain with execute() to return a Result object.

范例

Example #1 mysql_xdevapi\CollectionFind::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");
$create $schema->createCollection("people");
$result $create
  
->add('{"name": "Alfred", "age": 18, "job": "Butler"}')
  ->
execute();

// ...

$collection $schema->getCollection("people");

$result $collection
  
->find('job like :job and age > :age')
  ->
bind(['job' => 'Butler''age' => 16])
  ->
execute();

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

以上例程的输出类似于:

array(1) {
  [0]=>
  array(4) {
    ["_id"]=>
    string(28) "00005b6b536100000000000000cf"
    ["age"]=>
    int(18)
    ["job"]=>
    string(6) "Butler"
    ["name"]=>
    string(6) "Alfred"
  }
}