php change date F j Y to timestamp code example

Example 1: php timestamp to date

<?php 
echo date('m/d/Y H:i:s', 1541843467); 
?>

Example 2: time to string in php

<?php
$date = '27/06/2020, 04:42:43 PM';
$date = str_replace('/', '-', $date);
echo date('F j, Y, g:i a',strtotime($date));

// output : June 27, 2020, 4:42 pm
?>