.\"return the amount of real time that occurred while evaluation an expression .DT time_expression $MUDNAME$ driver help time_expression .SH Name .SI 5 time_expression() - return the amount of real time that an expression took .EI .SH Synopsis .SI 5 int time_expression( mixed expr ); int time_expression { ... } .EI .SH Description .SP 5 5 Evaluate `expr' or the specified block of code. The amount of real time that passes 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. .EP .SH See also .SI 5 rusage(), function_profile(), time() .EI