Let's talk about how to convert timestamps in php js

In front-end development, we often need to convert time into timestamp to facilitate calculation and data transfer. In back-end development, we need to convert the timestamp into a specific date and time format. This article will introduce how to convert timestamps in JavaScript and PHP.

Conversion of timestamps in JavaScript

In JavaScript, you can use the getTime() method in the Date() object to get the current time timestamp, for example:

var timestamp = new Date().getTime();

Similarly, we can convert the timestamp into a specific date and time format. JavaScript provides the toLocaleString() method and the toUTCString() method, which can convert timestamps to local time and Coordinated Universal Time (UTC) time. For example:

var timestamp = 1623180937857; //2021-06-08T08:28:57.857Z
var localDate = new Date(timestamp).toLocaleString();
console.log(localDate); //2021/6/8 下午4:28:57

var utcDate = new Date(timestamp).toUTCString();
console.log(utcDate); //Tue, 08 Jun 2021 08:28:57 GMT

Through the above method, we can convert the timestamp into the corresponding date and time format so that we can perform calculations and data transfer in front-end development.

Conversion of timestamps in PHP

In PHP, you can use the time() function to get the timestamp of the current time, for example:

$timestamp = time();

Likewise, we can convert timestamps to specific date and time formats. PHP provides the date() function to format date and time. For example:

$timestamp = 1623180937;
$localDate = date("Y-m-d H:i:s", $timestamp);
echo $localDate; //2021-06-08 08:28:57

$utcDate = gmdate("Y-m-d H:i:s", $timestamp);
echo $utcDate; //2021-06-08 08:28:57

The above code converts the timestamp to local time and coordinated universal time (UTC) time, and outputs it in the format Y-m-d H:i:s. Of course, the date() function in PHP supports more formatting options to meet our needs for different date and time formats.

Summary

Through the above introduction, we have learned about timestamp conversion in JavaScript and PHP. These methods can help us perform time-related operations more conveniently in front-end and back-end development.

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