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PHP Date and Time
Displaying Current Date and Time:
To display the current date and time in PHP, you can use the date() function. This function formats a local date and time, and returns it as a string.
<?php
echo date('Y-m-d H:i:s');
?>
Console Output:
2023-10-05 14:30:00
PHP Date and Time
Formatting Date:
The date() function can also be used to format dates in various ways, such as displaying only the year, month, or day.
<?php
echo date('l, F j, Y');
?>
Console Output:
Thursday, October 5, 2023
PHP Date and Time
Timestamp:
A timestamp in PHP is the number of seconds since January 1, 1970. You can get the current timestamp using the time() function.
<?php
echo time();
?>
Console Output:
1696523400
PHP Date and Time
Converting a Timestamp to a Date:
You can convert a timestamp to a more readable date format using the date() function.
<?php
$timestamp = 1696523400;
echo date('Y-m-d H:i:s', $timestamp);
?>
Console Output:
2023-10-05 14:30:00
PHP Date and Time
Using strtotime() Function:
The strtotime() function parses an English textual datetime description into a Unix timestamp.
<?php
$timestamp = strtotime('next Monday');
echo date('Y-m-d H:i:s', $timestamp);
?>
Console Output:
2023-10-09 00:00:00
PHP Date and Time
Calculating Date Differences:
You can calculate the difference between two dates using the diff() method of the DateTime class.
<?php
$date1 = new DateTime('2023-10-05');
$date2 = new DateTime('2023-12-25');
$interval = $date1->diff($date2);
echo $interval->format('%R%a days');
?>
Console Output:
+81 days
PHP Date and Time
Adding and Subtracting Dates:
You can add or subtract dates using the modify() method of the DateTime class.
<?php
$date = new DateTime('2023-10-05');
$date->modify('+1 month');
echo $date->format('Y-m-d');
?>
Console Output:
2023-11-05
PHP Date and Time
Time Zones:
In PHP, you can set the default timezone using the date_default_timezone_set() function.
<?php
date_default_timezone_set('America/New_York');
echo date('Y-m-d H:i:s');
?>
Console Output:
2023-10-05 10:30:00
PHP Date and Time
Creating Custom Date Formats:
You can create custom date formats using the date_format() function with a DateTime object.
<?php
$date = new DateTime('2023-10-05');
echo $date->format('l, d F Y');
?>
Console Output:
Thursday, 05 October 2023
PHP Date and Time
Handling Leap Years:
PHP can easily handle leap years when calculating dates. You can check if a year is a leap year by creating a date and formatting it.
<?php
$year = 2024;
$date = new DateTime("$year-02-29");
echo $date->format('Y-m-d');
?>
Console Output:
2024-02-29
