Work with date and time PHP

Functions for working with date and time.

These functions allow you to get the current time on the server on which the script is executed. In addition to receiving, time can be represented in various formats, calculate the difference between two points in time and even find out the time of sunrise in a particular area on a given day!

Let's see the main of these functions.

bool checkdate (int $ month, int $ day, int $ year)
Returns TRUE if the date given by the arguments is correct; otherwise, it returns FALSE. The date is considered correct if:
year in the range from 1 to 32767 inclusive
month ranging from 1 to 12 inclusive
day is a valid day number for the month specified by the month argument, taking into account that year can specify a leap year.

array date_parse (string $ date)
Returns an associative array with information about the date $ date. The array contains year, day, month, hours, minutes, seconds, and something else interesting.

array date_sun_info (int $ time, float $ latitude, float $ longitude)
Returns an array with the time of sunrise, sunset, daylight, and so on.
Arguments is a timestamp that can be, for example, obtained from a string using the datetotime ($ str) function. Or function time () - the current time.

string date (string $ format [, int $ timestamp])
Returns the time formatted according to the format argument using the timestamp specified by the timestamp argument or the current system time if the timestamp is not set.
Format is a string containing formatting characters. And ordinary characters too. Normal are displayed as is, and the formatting characters are replaced with the corresponding values:

int time (void)
Returns the number of seconds elapsed since the beginning of the Unix Epoch (The Unix Epoch, January 1, 1970, 00:00:00 GMT) to the current time.