PHP – date_modify() Function
The PHP date_modify() function modifies the timestamp.
The PHP date_parse_from_format() function returns an associative array with detailed information about a specified date, using to the specified format.
The PHP date_parse() function returns an associative array with detailed information about a specified date.
The PHP date_sub() function subtracts some days, months, years, hours, minutes, and seconds from a date.
The PHP date_sun_info() function returns an array containing information about sunset/sunrise and twilight begin/end, for a specified day and location.
The PHP date_sunrise() function returns the sunrise time for a specified day and location.
The PHP date_sunset() function returns the sunset time for a specified day and location.
The PHP date_timestamp_get() function returns the Unix timestamp.
The PHP date_timestamp_set() function sets the date and time based on a Unix timestamp.
The PHP date_timezone_get() function returns the time zone of the given DateTime object.
The PHP date_timezone_set() function sets the time zone for the DateTime object.
The PHP debug_backtrace() function generates a PHP backtrace which displays data from the code that led up to the debug_backtrace() function.
The PHP debug_print_backtrace() function prints a PHP backtrace which displays data from the code that led up to the debug_print_backtrace() function.
The PHP default keyword is used in a switch block to specify which code to run when none of the case statements were matched by the expression.