time_expression
NAME
time_expression() - return the amount of real time that an expression
took
SYNOPSIS
int time_expression( mixed expr );
DESCRIPTION
Evaluate <expr>. The amount of real time that passed during the evalu‐
ation of <expr>, in microseconds, is returned. The precision of the
value is not necessarily 1 microsecond; in fact, it probably is much
less precise.
SEE ALSO
rusage(3), function_profile(3), time(3)