#RANGE OF UTIME PHP HOW TO#
#RANGE OF UTIME PHP MANUAL#
#RANGE OF UTIME PHP ISO#

Going over docs carefully and leaving as much as possible to native language functions is best approach to ensure nothing gets miscalculated.įunction could (and should) be extended a bit to handle corner cases better, but works fine for my current needs. The time in range method works with your CGM’s data by looking at the amount of time your blood sugar has been in target range and the times you’ve been high ( hyperglycemia) or low ( hypoglycemia ). The computer stores dates and times in a format called UNIX Timestamp, which measures time as a number of seconds since the beginning of the Unix epoch. These are the top rated real world PHP examples of utime extracted from open source projects. The PHP date() function convert a timestamp to a more readable date and time.

#RANGE OF UTIME PHP HOW TO#

It is smart enough to handle daylight saving time issues and is way more reliable than using bunch of seconds for interval. Time in range is the amount of time you spend in the target blood sugar (blood glucose) rangebetween 70 and 180 mg/dL for most people. In this tutorial you will learn how to extract or format the date and time in PHP. It takes timestamp value of current date and adds interval to it.

interval to generate dates (defaults to one day) īulk of function is simple loop that creates dates by skipping in specified interval until out of range.

range as two dates (remember to pick bulletproof format).

Will show how to work around that in my function. That only works until you hit daylight saving shift or something as obscure.

#RANGE OF UTIME PHP ISO#

Since here I am writing for primary audience with different (and crazy, who puts month before day?) date format I stick to ISO formats in clear descending order.Īnd finally since programs usually deal with time as amount of seconds it seems easy to treat time spans as set of those (60*60*24).

#RANGE OF UTIME PHP MANUAL#

PHP manual has proper list of date formats. By default, microtime() returns a string in the form 'msec sec', where sec is the number of seconds since the Unix epoch (0:00:00 January 1,1970 GMT), and msec measures microseconds that have elapsed since sec and is also expressed in seconds. PHP does its best to interpret them, but for X possible ways to write down date there are twice that ways it can go wrong. You can format output however you like, but it is important to be very careful with date inputs. Functions that are sensitive to that will even try to raise fuss if it isn’t set. In modern versions of PHP (which you should be using) is is handled by date_default_timezone_set function (or date.timezone in configuration).

It is important to establish time zone environment. I needed range of days for one graph in Google Charts so I tried to make compact, flexible (and me-proof) function to generate range of dates. There are different time formats (almost freeform), time zones, daylight saving offsets and who knows what else to consider.Īs with any tricky task my rule of a thumb is to trust programming language and don’t trust Googled-up snippets too much.

For modern projects use something more recent, like the Period library.ĭate and time values are nightmare in the world of binary (or decimal at best).

Range of utime php