time_expression(3)

NAME
SYNOPSIS

time_expression() - return the amount of real time that an expression took int time_expression( mixed expr );

DESCRIPTION
Evaluate <expr>. The amount of real time that passed during the evaluation 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).