What is the method for converting a PHP timestamp?

In PHP, you can use the date() function to convert a timestamp into a specified date and time format. Here is an example:

$timestamp = 1594194000; // 时间戳
$date = date('Y-m-d H:i:s', $timestamp); // 转换为指定格式的日期和时间
echo $date; // 输出: 2020-07-09 00:00:00

In the above example, the first parameter of the date() function is the date and time format string, and the second parameter is the timestamp to be converted. You can customize the format string as needed, with specific format strings available in the PHP official documentation for the date() function.