How to convert time string to timestamp in php

php method to convert a time string into a timestamp: You can use the built-in function strtotime() to achieve this. The strtotime() function can parse the date or time description of any English text into a Unix timestamp, returning the timestamp if successful, otherwise it returns false.

PHP provides us with a large number of built-in functions, including the strtotime() function, which can parse any English text date or time description into Unix time Stamp (number of seconds since January 1 1970 00:00:00 GMT), very convenient to use.

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Syntax:

strtotime(time,now);

Parameter description:

time Required. Specifies a date/time string.​

now ​ Optional. Specifies the timestamp used to calculate the return value. If this parameter is omitted, the current time is used.

Return value:

If successful, return timestamp, if failed, return FALSE.

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Code sample:

<?php
echo strtotime("2009-10-21 16:00:10");
//输出 1256112010
echo strtotime("10 September 2008");
//输出 1220976000
echo strtotime("+1 day"), "<br />";
//输出明天此时的时间戳
?>

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