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<?php
// To change the format of an existing date
$old_date_format = "20/03/1999";
$new_data_format = date("Y-m-d H:i:s", strtotime($old_date_format));
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$today = date("F j, Y, g:i a"); // March 10, 2001, 5:16 pm
$today = date("m.d.y"); // 03.10.01
$today = date("j, n, Y"); // 10, 3, 2001
$today = date("Ymd"); // 20010310
$today = date('h-i-s, j-m-y, it is w Day'); // 05-16-18, 10-03-01, 1631 1618 6 Satpm01
$today = date('\i\t \i\s \t\h\e jS \d\a\y.'); // it is the 10th day.
$today = date("D M j G:i:s T Y"); // Sat Mar 10 17:16:18 MST 2001
$today = date('H:m:s \m \i\s\ \m\o\n\t\h'); // 17:03:18 m is month
$today = date("H:i:s"); // 17:16:18
$today = date("Y-m-d H:i:s"); // 2001-03-10 17:16:18 (the MySQL DATETIME format)
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$originalDate = "2017-03-08";
$newDate = date("d/m/Y", strtotime($originalDate));
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<?php
$date = DateTime::createFromFormat('j-M-Y', '15-Feb-2009');
echo $date->format('Y-m-d');
?>
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date("D M j G:i:s T Y")."<br>"; // Sat Mar 22 17:16:18 MST 2001
date('H:m:s \m \i\s\ \m\o\n\t\h')."<br>"; // 18:03:18 m is month
date("H:i:s")."<br>"; // 18:16:18
date("Y-m-d H:i:s")."<br>"; // 2022-03-11 18:16:18 (MySQL DATETIME format)
date("j F, Y, g:i a")."<br>"; // 11 March, 2022, 6:16 pm
date("m.d.y")."<br>"; // 03.11.01
date("j, n, Y")."<br>"; // 11, 3, 2001
date("Ymd")."<br>"; // 20010310
date('h-i-s, j-m-y, it is w Day')."<br>"; // 02-12-18, 10-03-01, 1631 1618 6 Satpm01
date('\i\t \i\s \t\h\e jS \d\a\y.')."<br>"; // it is the 15th day.
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$myDateTime = DateTime::createFromFormat('Y-m-d', $dateString);
$newDateString = $myDateTime->format('d-m-Y');
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<?php
$date = '05/05/2021';
echo DateTime::createFromFormat("d/m/Y", $date)->format('Y-m-d');
//2021-05-05
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$time = time(); // Get the current timestamp
$timeFormatted = date('Y-m-d H:i:s', $time); // Format the time as desired
echo $timeFormatted; // Output the formatted time
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$fecha_format = date("d/m/Y", strtotime('2022-12-24'));
// salida: 24/12/2022