- PHP 手册
- 函数参考
- 数据库扩展
- 针对各数据库系统对应的扩展
- Mongo
- 核心类
- MongoCursor
MongoCursor::fields
(PECL mongo >=1.0.6)
MongoCursor::fields — Sets the fields for a query
说明
public MongoCursor::fields ( array$f
) : MongoCursor
Fields are specified by "fieldname" : bool. TRUE
indicates that a field should be returned, FALSE indicates that it should
not be returned. You can also use 1 and 0 instead of TRUE and FALSE.
Thus, to return only the "summary" field, one could say:
<?php
$cursor->fields(array("summary" => true));
?>
To return all fields except the "hidden" field:
<?php
$cursor->fields(array("hidden" => false));
?>
参数
-
f -
Fields to return (or not return).
返回值
Returns this cursor.
错误／异常
Throws MongoCursorException if this cursor has started iterating or a scalar argument is given.
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/mongocursor.fields.php