Tp177 Micro Example Programs In Php
Welcome to the www.micro-examples.com web site. Electronic projects for microcontrollers, with source code examples and circuit schematics, cheap and easy! Jan 10, 2007 TP177A project transfer Started by Ben, 5 Jan 2007. 5 posts in this topic. Ben 1 Sparky. Last I heard you could not program the TP177 with the USB multi-master cable, only the older serial cable or the new serial cable with the switches set to emulate the old serial cable. The TP177A & B's were designed for the S7-3/4's so MPI is the.
All these timing scripts rely on microtime which relies on gettimebyday(2) This can be inaccurate on servers that run ntp to syncronise the servers time. For timing, you should really use clock_gettime(2) with the CLOCK_MONOTONIC flag set. This returns REAL WORLD time, not affected by intentional clock drift. This may seem a bit picky, but I recently saw a server that's clock was an hour out, and they'd set it to 'drift' to the correct time (clock is speeded up until it reaches the correct time) Those sorts of things can make a real impact. Any solutions, seeing as php doesn't have a hook into clock_gettime?
More info here: gettimeofday-should-never-be-used-to-measure-time. Cosmovision de los monos de mesoamerica pdf. But note that the default 'precision' setting of PHP* - which is used when a float is converted to a stringy format by echo()ing, casting or json_encode()ing etc - is not enough to hold the six digit accuracy of microtime(true). Out of the box, microtime(true) will echo something like:.1234 Which is obviously less than microsecond accuracy. You'll probably want to bump the 'precision' setting up to 16 which will echo something like:.123456 *Internally* it will be accurate to the six digits even with the default 'precision', but a lot of things (ie. NoSQL databases) are moving to all-text representations these days so it becomes a bit more important. * 14 at the time of writing.
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Canon eos elan ii user manual. A convenient way to write the current time / microtime as formatted string in your timezone as expression? Format ( 'Y-m-d H:i:s' ); $microDate = 'Microtime now is: '. Date_create_from_format ( 'U.u', number_format ( microtime ( true ), 6, '.'
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, ' ))-> setTimezone ((new DateTimeZone ( 'Europe/Berlin' )))-> format ( 'ymd H:i:s.u e' );?> For the microtime expression only the procedural style can be used. If you do not use namespaces the backslashes may be removed.
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PHP >= 5.4 needed due to accessing a member of a newly created object in a single expression '(new DateTime())->format('Y-m-d H:i:s.u')' DateTime now is: 2018-06-01 14:54:58 Europe/Berlin Microtime now is: 180601 14:16 Europe/Berlin.