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MongoDB\BSON\Document::has

(mongodb >=1.16.0)

MongoDB\BSON\Document::has — Returns whether a key is present in the document

说明

final public MongoDB\BSON\Document::has(string $key): bool

参数

key (string)

The key to look for in the document.

返回值

Returns true if the key is present in the document and false otherwise.

错误／异常

参见