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このドキュメントでは、 php中国語ネットマニュアル リリース
(PECL mongo >= 1.5.0)
MongoId::isValid — Check if a value is a valid ObjectId
$value
)This method may be used to check a variable before passing it as an argument to MongoId::__construct() .
value
The value to check for validity.
Returns TRUE
if value
is a
MongoId instance or a string consisting of exactly 24
hexadecimal characters; otherwise, FALSE
is returned.