How to determine the current time in php

How to determine what time it is in php: 1. Use the time() or strtotime() function to get the timestamp representing the current time; 2. Use "date("H:i:s", time Stamp)" statement formats the timestamp, converts it into "hour:minute:second" format and outputs it.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

php determines the current What are the points

#1. Get the timestamp representing the current time

Method 1: Use the time() function

time () function returns the current time in seconds since the Unix epoch (January 1 1970 00:00:00 GMT).

Syntax:

time()

Method 2: strtotime() function

strtotime() function parses any string datetime description into a Unix timestamp (since January 1 1970 seconds since 00:00:00 GMT).

Syntax:

strtotime("now")

2. Use date() function to format timestamp

date("H:i:s",时间戳)

Full code:

<?php
header("Content-type:text/html;charset=utf-8");
ini_set(&#39;date.timezone&#39;, &#39;Asia/Shanghai&#39;);//设置时区
$time=time();
echo "当前是：".date("H:i:s",$time);
?>

Extended knowledge:

The world is divided into 24 time zones. Each time zone has its own local time. The local time of each time zone differs by 1 at the same time. ~23 hours, for example, the difference between local time in London, UK and local time in Beijing is 8 hours. To set the time zone, please refer to the article "How to convert time zone time in php?" 》

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