June 10th, 2019 
Nilesh Chaurasia PHP Date and Time Function
The date() and time() function is used to set the format of the date and time. By the date() function, you can set both format date and as well as time
PHP date() Function
The PHP date() is used to set the format of the date as well as time also.
Syntax of date() function
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<?php
date(format, timestamp);
?>
</body>
</html>
Caution:Format is required to specify the format of timestamp. And timestemp is optional, timestamp is a date and time of a particular event.
PHP Date Format
To define the date, the format parameter is required. The format parameters have different syntax like… (“y/m/d”), (“d-m-y”)and many more.
Example 1 – date() Function Code Syntax
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<?php
echo date("y/m/d") . "<br />";
echo date("d/m/y") . "<br />";
echo date("m/d/y") . "<br />";
echo date("d m, Y") . "<br />";
echo date("d M, Y") . "<br />";
echo date("d F, Y");
?>
</body>
</html>
In the above example, we show how the different ways you can set the date format as per the requirements.
List of Day Parameters
| Format String Parameters | Description |
|---|---|
| d | “d” represents to the date. |
| j | “j” represents to date but without leading zeros like (1, 2, 3…). |
| D | “D” represents to the day in the starting 3 characters from the day of the week(Mon-Sun). |
| l | “l” represents to the day of the week in the string form. |
| w | “w” represents to the day of the week, were zero(0) for sunday and six(6) for the staurday. |
| z | “z” represents to the day of the year which is starting from zero(0) to 365. |
List of Month Parameters
| Format String Parameters | Description |
|---|---|
| m | “m” represents to the month in numeric form with leading zero like(01, 02…). |
| n | “n” represents to month but without leading zero like(1, 2, 3…). |
| M | “M” represents to the month in the starting 3 characters from the month of the year(Jan-Dec). |
| F | “F” represents to the month of the year in the string form. |
| t | “z” returns the number of the days in a month(28, 30 or 31). |
List of Year Parameters
| Format String Parameters | Description |
|---|---|
| L | “L” represents to the current year is a leap year or not, if it returns 1 then the year is a leap year or if it returns 0 then the year is not a leap year. |
| y | “y” represents the 2 digit year format. |
| Y | “Y” represents the 4 digit year format. |
PHP Time Format
To define the time, the date() is used with the format parameter.
Example 2 – date() Function to show the time Code
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<?php
echo date("h:i:sa") . "<br />";
echo date("h:i:sA") . "<br />";
echo date("G:i:sA") . "<br />";
echo date("g:i:sA") . "<br />";
echo date("r") . "<br />";
?>
</body>
</html>
In the above example, we show how the different ways you can set the time format as per the requirements.
List of Time Parameters
| Format String Parameters | Description |
|---|---|
| r | “r” represents both date and time simultaneously. |
| h | “h” represents the hours with leading zeros like(01, 02, 03….). |
| H,G | “H or G” represents the hrs in the 00 to 23hours format. | g | “g” represents to the hours without leading zero like(1, 2, 3…). |
| a | “a” represents the lowercase Ante meridiem and Post meridiem. | A | “A” represents the Uppercase Ante meridiem and Post meridiem. |
| i | “i” represents the minutes with leading zero like(01, 09,…). | s | “s” represents the second with leading zero like(01, 02…). |
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Very interesting subject , thankyou for posting.