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This document uses PHP Chinese website manual Release
(PECL pecl_http >= 1.5.0)
HttpMessage::fromEnv — Create HttpMessage from environment
$message_type
[, string $class_name
= "HttpMessage"
] )Create an HttpMessage object from script environment.
message_type
The message type. See HttpMessage type constants.
class_name
a class extending HttpMessage
Returns an HttpMessage object on success or NULL
on failure.