A brief analysis of the method of converting php timestamp to js timestamp

When developing with PHP and JavaScript, we often encounter the problem of converting timestamps from PHP to JavaScript. While both languages ​​can represent timestamps, their implementation and format are slightly different. In this article, we will discuss how to convert PHP timestamps to JavaScript timestamps.

PHP Timestamp

In PHP, a timestamp is represented as a Unix timestamp, which is the number of seconds that have elapsed since January 1, 1970. You can get the current timestamp using PHP's time() function, or use the mktime() function to return a timestamp from a given date and time. The following is a sample code to get the current timestamp:

$timestamp = time();

The following is a sample code to get a timestamp from a specified date and time using the mktime() function:

$timestamp = mktime(12, 30, 0, 10, 31, 2021);

JavaScript Timestamp

In JavaScript, a timestamp is represented as a Unix timestamp or Epoch timestamp, which is the number of milliseconds since midnight on January 1, 1970. You can use JavaScript's Date object to get the current timestamp or convert a datetime into a timestamp.

The following is a sample code to get the current timestamp:

var timestamp = Date.now();

The following is a sample code to convert date time to timestamp:

var timestamp = new Date("October 31, 2021 12:30:00").getTime();

PHP timestamp to JavaScript time Stamp

In order to convert PHP timestamps to JavaScript timestamps, we need to consider the difference in their time units. PHP timestamps are in seconds, while JavaScript timestamps are in milliseconds. So we need to multiply the PHP timestamp by 1000 to get the JavaScript timestamp.

The following is a sample code to convert a PHP timestamp to a JavaScript timestamp:

$phpTimestamp = time();
$jsTimestamp = $phpTimestamp * 1000;
echo $jsTimestamp;

In the above sample code, we used the time() function to get the current timestamp and multiply it Get the JavaScript timestamp as 1000.

We can also use JavaScript's Date object to convert a PHP timestamp to a date and time, and then convert it to a JavaScript timestamp.

The following is the sample code to convert PHP timestamp to JavaScript timestamp:

$phpTimestamp = time();
$jsTimestamp = strtotime(date("Y-m-d H:i:s", $phpTimestamp)) * 1000;
echo $jsTimestamp;

In the above sample code, we use the date() function to convert the PHP timestamp to date and time String and then convert it to a Unix timestamp using the strtotime() function and multiply it by 1000 to get a JavaScript timestamp.

Conclusion

In this article, we discussed how to convert PHP timestamps to JavaScript timestamps. We learned the difference between PHP and JavaScript timestamps and how to convert them to their corresponding timestamps using PHP and JavaScript built-in functions. To ensure that the timestamps are correct, we need to pay attention to their time units when processing them. Hopefully, this article will help you get better at using timestamps in PHP and JavaScript.

The above is the detailed content of A brief analysis of the method of converting php timestamp to js timestamp. For more information, please follow other related articles on the PHP Chinese website!