Syntax:mixed hrtime (bool $is_num_return);
Parameter:This function takes one parameter as above and described below:
- $is_num_return:This is an optional Boolean parameter. It indicates whether it will be returned as a single number or an array. If set to TRUE, then it is returned as a number or as an array of integers if FALSE. The default is FALSE.
Returned value:This function returns nanoseconds or an array of integers.
Note. This function is available for PHP 7.3.0 and later.The following programs illustrate the
hrtime() functionin PHP:
Program 1:This program sets
$is_num_returnto TRUE.
print_r (hrtime (TRUE));
?> Output:149632499993800
Program 2:This program does not set the value to $is_num_return . This means it accepts the default.
print_r ( hrtime());
?> Output:Array ([0] = > 150389 [1] = > 914027500)
Link: https://www.php.net/manual/en/function.hrtime.php
