PHP 7 >= 7.3.0, PHP 8
hrtime - Get the system's high resolution time

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.



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

Return Values

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.

Related Functions

Example of hrtime

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