How to convert php time format into timestamp

How to convert PHP time format into timestamp: 1. Use the strtotime function to convert the date represented by the English text string into a timestamp. The syntax is "strtotime (string time [, int now])"; 2. , obtain the timestamp from the date through the mktime function.

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PHP date to timestamp strtotime and mktime functions

The strtotime() function is used to convert the date represented by the English text string into a timestamp. It is the inverse function of date() and returns the timestamp successfully, otherwise it returns FALSE.

Syntax:

int strtotime ( string time [, int now] )

The parameter time is the parsed string, which is the date represented according to the GNU date input format.

Example:

";//输出明天此时的时间戳 ?>

mktime() function is used to get the timestamp from the date, and returns the timestamp successfully, otherwise it returns FALSE.

Syntax:

int mktime(hour, minute, second, month, day, year)

Example:

Parameters can be from right to left If omitted, any omitted parameters will be set to the current values of the local date and time.

mktime() is useful for doing date calculations and validation, it will automatically calculate the correct value for out-of-range input. For example, the following example outputs 2008-01-01:

The last day of the next month:

The last day of any given month can be expressed as the first day of the next month "0" days, not -1 days, as in the following example:

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