php subtract time

How do I subtract two times in PHP? There is a known time format of 2012-11-22 12:05:07 I want to use the current time format is: 2012-11-23 16:13:08 minus the first time, that is, 2012-11-23 16:13:08 minus 2012-11-22 12:05:07 the time spent 1 days,

Before we know that SQL has the DateDiff () function, we need to calculate the date and time difference. I will directly put it in a program like php, asp, and asp.net for calculation, now I will share with you how to use the DateDiff function to

The first of these methods$time 1 = mktime (10,20,30,2,5,2000); 2000-2-5 10:20:30$time 2 = mktime (18,30,20,5,2,2000); 2000-5-2 18:30:20The second method of$time 1 = ' 2010-7-1 ';$time 2 = ' 2010-7-8 ';Calculate the difference between two

This paper summarizes the problems related to PHP time calculation. Share to everyone for your reference, as follows: 1. PHP Gets the date three months ago 2. Calculation Date 30 days later You can use strtotime PHP to provide a super-simple way

1.PHP (foreign name: Php:hypertext Preprocessor, Chinese name: "Hypertext Preprocessor") is a common open source scripting language. The grammar absorbs the C language, Java and Perl features, is conducive to learning, widely used, mainly for the

Time computing, php: php time computing issues Summary: This example summarizes php time computing issues. Share it with you for your reference. The details are as follows: 1. php obtains the date three months ago & lt; php $ s_sdatedate (Y-m-d);

PHP Time Calculation related issues summary, PHP related issues summary This paper summarizes the problems related to PHP time calculation. Share to everyone for your reference, as follows: 1. PHP Gets the date three months ago 2. Calculation Date

Summary of several methods for calculating page loading time in php. You can obtain and subtract the start time and end time of the page through the commonly used microtime (). The calculation result is a period of time that the page has been

This example describes how to convert the date format of the PHP date function. During website development, we often need to process the date and time. in PHP, many date and time functions are provided to facilitate PHP developers to calculate and

 The default session validity period in PHP is 1440 seconds (24 minutes) [weiweiokNote: The default value is 180 in PhP5. That is to say, if the client is not refreshed for more than 24 minutes, the current session will become invalid. Obviously,