পিএইচপি তারিখ ও সময় ফরম্যাটিং ​

date(format, timestamp)

date(format, timestamp)

<?php
    // date will be shown in this format
    // 01(day)-01(month)-1970(year)
    echo date("d-m-Y");

<?php
    // date will be shown in this format
    // 01(day)-01(month)-1970(year)
    echo date("d-m-Y");

<?php
    echo date("d/m/Y"); // 21/07/2021

<?php
    echo date("d/m/Y"); // 21/07/2021

<?php
    // Output at the time of writing: 1706409469
    echo time();

<?php
    // Output at the time of writing: 1706409469
    echo time();

<?php
    // Output at the time of writing: 28-01-2024
    echo date("d-m-Y", time());

<?php
    // Output at the time of writing: 28-01-2024
    echo date("d-m-Y", time());

<?php
    // Output at the time of writing: 28-01-2024 02:53:21
    echo date("d-m-Y H:i:s", time());

<?php
    // Output at the time of writing: 28-01-2024 02:53:21
    echo date("d-m-Y H:i:s", time());

<?php
    // Output at the time of writing: 1706400000
    echo strtotime("28-01-2024");

<?php
    // Output at the time of writing: 1706400000
    echo strtotime("28-01-2024");

<?php
    // Output at the time of writing: 1706527660
    echo strtotime("+1 day") . "\n";

<?php
    // Output at the time of writing: 1706527660
    echo strtotime("+1 day") . "\n";

<?php
    // Output at the time of writing: 29-01-2024
    echo date("d-m-Y", strtotime("+1 day"));

<?php
    // Output at the time of writing: 29-01-2024
    echo date("d-m-Y", strtotime("+1 day"));

<?php
    // Output at the time of wirting: 29-01-2024 13:41:02
    echo date("d-m-Y H:i:s", strtotime("+1 day"));

<?php
    // Output at the time of wirting: 29-01-2024 13:41:02
    echo date("d-m-Y H:i:s", strtotime("+1 day"));

<?php
    // Output: 1706486400
    echo strtotime("29-01-2024");

<?php
    // Output: 1706486400
    echo strtotime("29-01-2024");

<?php
    // Output: 24-02-2024
    echo date("d-m-Y", strtotime("24-02-2024"));

<?php
    // Output: 24-02-2024
    echo date("d-m-Y", strtotime("24-02-2024"));

<?php
    // Output: 24-02-2024 08:30:00am
    echo date("d-m-Y H:i:sa", strtotime("24-02-2024 08:30:00"));

<?php
    // Output: 24-02-2024 08:30:00am
    echo date("d-m-Y H:i:sa", strtotime("24-02-2024 08:30:00"));

<?php
    // Output at the time of writing: 29-01-2024
    echo date("d-m-Y", strtotime("+1 day")) . "\n";
    // Output at the time of writing: 04-02-2024
    echo date("d-m-Y", strtotime("+1 week")) . "\n";
    // Output at the time of writing: 06-02-2024
    echo date("d-m-Y", strtotime("+1 week 2 days 4 hours 2 seconds")) . "\n";
    // Output at the time of writing: 01-02-2024
    echo date("d-m-Y", strtotime("next Thursday")) . "\n";
    // Output at the time of writing: 22-01-2024
    echo date("d-m-Y", strtotime("last Monday")) . "\n";

<?php
    // Output at the time of writing: 29-01-2024
    echo date("d-m-Y", strtotime("+1 day")) . "\n";
    // Output at the time of writing: 04-02-2024
    echo date("d-m-Y", strtotime("+1 week")) . "\n";
    // Output at the time of writing: 06-02-2024
    echo date("d-m-Y", strtotime("+1 week 2 days 4 hours 2 seconds")) . "\n";
    // Output at the time of writing: 01-02-2024
    echo date("d-m-Y", strtotime("next Thursday")) . "\n";
    // Output at the time of writing: 22-01-2024
    echo date("d-m-Y", strtotime("last Monday")) . "\n";

<?php
    // Output at the time of writing: 28-01-2025 15:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 year")) . "\n";
    // Output at the time of writing: 28-02-2024 15:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 month")) . "\n";
    // Output at the time of writing: 29-01-2024 15:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 day")) . "\n";
    // Output at the time of writing: 28-01-2024 16:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 hour")) . "\n";
    // Output at the time of writing: 28-01-2024 15:56:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 minute")) . "\n";
    // Output at the time of writing: 28-01-2024 15:55:43pm
    echo date("d-m-Y H:i:sa", strtotime("+1 second")) . "\n";

<?php
    // Output at the time of writing: 28-01-2025 15:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 year")) . "\n";
    // Output at the time of writing: 28-02-2024 15:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 month")) . "\n";
    // Output at the time of writing: 29-01-2024 15:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 day")) . "\n";
    // Output at the time of writing: 28-01-2024 16:55:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 hour")) . "\n";
    // Output at the time of writing: 28-01-2024 15:56:42pm
    echo date("d-m-Y H:i:sa", strtotime("+1 minute")) . "\n";
    // Output at the time of writing: 28-01-2024 15:55:43pm
    echo date("d-m-Y H:i:sa", strtotime("+1 second")) . "\n";

<?php
    // Output at the time of writing: 28-01-2025 16:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next year")) . "\n";
    // Output at the time of writing: 28-02-2024 16:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next month")) . "\n";
    // Output at the time of writing: 29-01-2024 16:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next day")) . "\n";
    // Output at the time of writing: 28-01-2024 17:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next hour")) . "\n";
    // Output at the time of writing: 28-01-2024 16:07:01PM
    echo date("d-m-Y H:i:sA",strtotime("next minute")) . "\n";
    // Output at the time of writing: 28-01-2024 16:06:02PM
    echo date("d-m-Y H:i:sA",strtotime("next second")) . "\n";

<?php
    // Output at the time of writing: 28-01-2025 16:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next year")) . "\n";
    // Output at the time of writing: 28-02-2024 16:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next month")) . "\n";
    // Output at the time of writing: 29-01-2024 16:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next day")) . "\n";
    // Output at the time of writing: 28-01-2024 17:06:01PM
    echo date("d-m-Y H:i:sA",strtotime("next hour")) . "\n";
    // Output at the time of writing: 28-01-2024 16:07:01PM
    echo date("d-m-Y H:i:sA",strtotime("next minute")) . "\n";
    // Output at the time of writing: 28-01-2024 16:06:02PM
    echo date("d-m-Y H:i:sA",strtotime("next second")) . "\n";

<?php
    // Output at the time of writintg: 2024
    echo date("Y");

<?php
    // Output at the time of writintg: 2024
    echo date("Y");

<?php
    // Outptut at the time of writing: 06:57:04
    echo date("h:i:s") . "\n";
    // Outptut at the time of writing: 06:57:04 pm
    echo date("h:i:s a") . "\n";
    // Outptut at the time of writing: 06:57:04 PM
    echo date("h:i:s A") . "\n";
    // Outptut at the time of writing: 18:57:04
    echo date("H:i:s") . "\n";
    // Outptut at the time of writing: 18:57:04 pm
    echo date("H:i:s a") . "\n";
    // Outptut at the time of writing: 18:57:04 PM
    echo date("H:i:s A") . "\n";

<?php
    // Outptut at the time of writing: 06:57:04
    echo date("h:i:s") . "\n";
    // Outptut at the time of writing: 06:57:04 pm
    echo date("h:i:s a") . "\n";
    // Outptut at the time of writing: 06:57:04 PM
    echo date("h:i:s A") . "\n";
    // Outptut at the time of writing: 18:57:04
    echo date("H:i:s") . "\n";
    // Outptut at the time of writing: 18:57:04 pm
    echo date("H:i:s a") . "\n";
    // Outptut at the time of writing: 18:57:04 PM
    echo date("H:i:s A") . "\n";

<?php
    // Output: UTC as no timezone has been set
    // with the date_default_timezone_set() function
    // or in the ini config file.
    echo date_default_timezone_get();

<?php
    // Output: UTC as no timezone has been set
    // with the date_default_timezone_set() function
    // or in the ini config file.
    echo date_default_timezone_get();

<?php
    date_default_timezone_set("Asia/Dhaka");
    echo date_default_timezone_get(); // Asia/Dhaka

<?php
    date_default_timezone_set("Asia/Dhaka");
    echo date_default_timezone_get(); // Asia/Dhaka

<?php
    date_default_timezone_set("Asia/Dhaka");

    // Output at the time of writing: 29-01-2024 08:49:44 AM
    echo date("d-m-Y h:i:s A");

<?php
    date_default_timezone_set("Asia/Dhaka");

    // Output at the time of writing: 29-01-2024 08:49:44 AM
    echo date("d-m-Y h:i:s A");

mktime(hour, minute, second, month, day, year)

mktime(hour, minute, second, month, day, year)

<?php
    // Output: 1706517900
    echo mktime(8, 45, 0, 1, 29, 2024);

<?php
    // Output: 1706517900
    echo mktime(8, 45, 0, 1, 29, 2024);

<?php
    // Output: 21-02-2024
    echo date("d-m-Y", mktime(9, 15, 0, 2, 21, 2024));

<?php
    // Output: 21-02-2024
    echo date("d-m-Y", mktime(9, 15, 0, 2, 21, 2024));

<?php
    // Output: 29-01-2024 09:15:00
    echo date("d-m-Y H:i:s", mktime(9, 15, 0, 1, 29, 2024));

<?php
    // Output: 29-01-2024 09:15:00
    echo date("d-m-Y H:i:s", mktime(9, 15, 0, 1, 29, 2024));

<?php
    // Output: 1706810400 converts to 02-02-2024
    $startdate = strtotime("Friday");
    // Output: 1707415200 converts to 09-02-2024
    $enddate = strtotime("+1 week", $startdate);

    echo $startdate . "\n" . $enddate . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n";

    while ($startdate < $enddate) {
        echo date("M d Y", $startdate) . "\n";

        // baseTimestamp provided to the second parameter
        // of strtotime() function
        $startdate = strtotime("+1 day", $startdate);
    }

<?php
    // Output: 1706810400 converts to 02-02-2024
    $startdate = strtotime("Friday");
    // Output: 1707415200 converts to 09-02-2024
    $enddate = strtotime("+1 week", $startdate);

    echo $startdate . "\n" . $enddate . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n";

    while ($startdate < $enddate) {
        echo date("M d Y", $startdate) . "\n";

        // baseTimestamp provided to the second parameter
        // of strtotime() function
        $startdate = strtotime("+1 day", $startdate);
    }

<?php
    // Output: 1706918400 converts to 03-02-2024
    $startdate = strtotime("Saturday");
    // Output: 1710547200 converts to 16-03-2024
    $enddate = strtotime("+6 weeks", $startdate);

    echo $startdate . "\n" . $enddate . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n";

    while ($startdate < $enddate) {
        echo date("M d Y", $startdate) . "\n";
        $startdate = strtotime("+1 week", $startdate);
    }

<?php
    // Output: 1706918400 converts to 03-02-2024
    $startdate = strtotime("Saturday");
    // Output: 1710547200 converts to 16-03-2024
    $enddate = strtotime("+6 weeks", $startdate);

    echo $startdate . "\n" . $enddate . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n";

    while ($startdate < $enddate) {
        echo date("M d Y", $startdate) . "\n";
        $startdate = strtotime("+1 week", $startdate);
    }

    // Output: 1708473600 converts to 21-02-2024
    $startdate = strtotime("2024-02-21");

    // Output: 1711584000 converts to 28-03-2024
    $enddate = strtotime("2024-03-28");

    // Output: 3110400 converts to 06-02-1970. Why?
    // Remember Unix epoch time is 01-01-1970?
    // So the counting starts from 00:00:00 01-01-1970
    // Since the difference between two dates is 36 Days
    // So the output is one month and 6 days of another month.
    // Try to understand by doing simple math
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n" . date("d-m-Y", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff / (60 * 60 * 24)) . " Days";

    // Output: 1708473600 converts to 21-02-2024
    $startdate = strtotime("2024-02-21");

    // Output: 1711584000 converts to 28-03-2024
    $enddate = strtotime("2024-03-28");

    // Output: 3110400 converts to 06-02-1970. Why?
    // Remember Unix epoch time is 01-01-1970?
    // So the counting starts from 00:00:00 01-01-1970
    // Since the difference between two dates is 36 Days
    // So the output is one month and 6 days of another month.
    // Try to understand by doing simple math
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n" . date("d-m-Y", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff / (60 * 60 * 24)) . " Days";

<?php
    // Output: 1708516800 converts to 21-02-2024
    $startdate = strtotime("2024-02-21 12:00:00");

    // Output: 1708624800 converts to 22-02-2024
    $enddate = strtotime("2024-02-22 18:00:00");

    // Output: 108000 converts to 02-01-1970. Why?
    // Find previous comment
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n" . date("d-m-Y", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff / (60 * 60)) . " Hours";

<?php
    // Output: 1708516800 converts to 21-02-2024
    $startdate = strtotime("2024-02-21 12:00:00");

    // Output: 1708624800 converts to 22-02-2024
    $enddate = strtotime("2024-02-22 18:00:00");

    // Output: 108000 converts to 02-01-1970. Why?
    // Find previous comment
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y", $startdate) . "\n" . date("d-m-Y", $enddate) . "\n" . date("d-m-Y", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff / (60 * 60)) . " Hours";

<?php
    // Output: 1708516800 converts to 21-02-2024 12:00:00
    $startdate = strtotime("2024-02-21 12:00:00");

    // Output: 1708605000 converts to 22-02-2024 12:30:00
    $enddate = strtotime("2024-02-22 12:30:00");

    // Output: 88200 converts to 02-01-1970 00:30:00. Why?
    // Find previous comment
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y H:i:s", $startdate) . "\n" . date("d-m-Y H:i:s", $enddate) . "\n" . date("d-m-Y H:i:s", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff / (60)) . " Minutes";

<?php
    // Output: 1708516800 converts to 21-02-2024 12:00:00
    $startdate = strtotime("2024-02-21 12:00:00");

    // Output: 1708605000 converts to 22-02-2024 12:30:00
    $enddate = strtotime("2024-02-22 12:30:00");

    // Output: 88200 converts to 02-01-1970 00:30:00. Why?
    // Find previous comment
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y H:i:s", $startdate) . "\n" . date("d-m-Y H:i:s", $enddate) . "\n" . date("d-m-Y H:i:s", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff / (60)) . " Minutes";

<?php
    // Output: 1708516800 converts to 21-02-2024 12:00:00
    $startdate = strtotime("2024-02-21 12:00:00");

    // Output: 1708603230 converts to 22-02-2024 12:00:30
    $enddate = strtotime("2024-02-22 12:00:30");

    // Output: 86430 converts to 02-01-1970 00:00:30. Why?
    // Find previous comment
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y H:i:s", $startdate) . "\n" . date("d-m-Y H:i:s", $enddate) . "\n" . date("d-m-Y H:i:s", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff) . " Seconds";

<?php
    // Output: 1708516800 converts to 21-02-2024 12:00:00
    $startdate = strtotime("2024-02-21 12:00:00");

    // Output: 1708603230 converts to 22-02-2024 12:00:30
    $enddate = strtotime("2024-02-22 12:00:30");

    // Output: 86430 converts to 02-01-1970 00:00:30. Why?
    // Find previous comment
    $diff = $enddate - $startdate;

    echo $startdate . "\n" . $enddate . "\n" . $diff . "\n";
    echo date("d-m-Y H:i:s", $startdate) . "\n" . date("d-m-Y H:i:s", $enddate) . "\n" . date("d-m-Y H:i:s", $diff) . "\n";
    echo "Difference between two dates: " . floor($diff) . " Seconds";