hrtime
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hrtime

(PHP 7 >= 7.3.0, PHP 8)

hrtime — Get the system's high resolution time

Beschreibung

function hrtime(bool $as_number = false): array|int|float|false

Returns the system's high resolution time, counted from an arbitrary point in time. The delivered timestamp is monotonic and can not be adjusted.

Parameter-Liste

as_number

Whether the high resolution time should be returned as array or number.

Rückgabewerte

Returns an array of integers in the form [seconds, nanoseconds], if the parameter as_number is false. Otherwise the nanoseconds are returned as int (64bit platforms) or float (32bit platforms). Returns false on failure.

Changelog

Version Beschreibung
8.5.0 On macOS, the implementation now uses clock_gettime_nsec_np(CLOCK_UPTIME_RAW) instead of mach_absolute_time().

Beispiele

Beispiel #1 hrtime() usage

<?php
echo hrtime(true), PHP_EOL;
print_r(hrtime());
?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

10444739687370679
Array
(
    [0] => 10444739
    [1] => 687464812
)

Siehe auch

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