PHP in time and $_server["Request_time"]

Source: Internet
Author: User
time– returns the current UNIX timestamp, returning the number of seconds since the Unix era (00:00:00 GMT January 1, 1970) to the current time. function is called, slow.

$_server["Request_time"]– the timestamp at the start of the request. Valid from PHP 5.1.0. Higher efficiency without calling functions (recommended)

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