Tuesday, November 17, 2020

PHP | date_modify() Function

PHP date_modify() Function



Hello dear readers! welcome back to another edition of our tutorial on PHP. In this tutorial guide, we are going to be discussing about the PHP date_modify() Function.

PHP date_modify() function is an alias of DateTime::modify(). This function is used to modify the the date in a DateTime object. It alters the time stamp of the given object.

Syntax

Following below is the syntax to use this function -

date_modify($object, $modify)


Parameter Details

Sr.NoParameter & Description
1

object (Mandatory)

This represents the DateTime object you want to modify.

2

modify (Mandatory)

This is a date/time string specifying the modification needed.


Return Value

This built-in PHP function returns the DateTime object with modified value. Incase of failure, it returns FALSE.

PHP Version

This function was first introduced as part of core PHP v 5.2.0 and, works with all the later versions.

Example1

Following example illustrates the usage of the PHP date_modify() function -

<?php
   //Modifying the date
   $date = date_modify(new DateTime(), "+15 day");   
   print("Date: ".date_format($date, "Y/m/d"));
?>

Output

When the above code is executed, it will produce the following result -

Date: 2020/05/21

Example2

The following example creates a DateTime object and modifies its date using the PHP date_modify() function -

<?php
   //Creating a DateTime object
   $date_time_Obj = date_create("25-09-1989");
   print("Original Date: ".date_format($date_time_Obj, "Y/m/d"));
   print("\n");
   //Setting the date
   $date = date_modify($date_time_Obj, "+15 years 7 months 23 days" );   
   print("Modified Date: ".date_format($date, "Y/m/d"));
?>

Output

When the above code is executed, it will produce the following result -

Original Date: 1989/09/25
Modified Date: 2005/05/18

Example3

You can also modify a date by specifying the number of weeks as -

<?php
   //Creating a DateTime object
   $date_time_Obj = date_create("25-09-1989");
   print("Original Date: ".date_format($date_time_Obj, "Y/m/d"));
   print("\n");
   //Setting the date
   $date = date_modify($date_time_Obj, "1960 weeks" );   
   print("Modified Date: ".date_format($date, "Y/m/d"));
?>

Output

When the above code is executed, it will produce the following result -

Original Date: 1989/09/25
Modified Date: 2027/04/19

Example4

Try the following example -

<?php
   $date = new DateTime("1990-12-12");
   $date->modify("+1 day");
   
   echo $date->format("Y-m-d");
?>

Output

When the above code is executed, it will produce the following result -

1990-12-13


Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP date_offset_get() Function.

Feel free to ask your questions where necessary and i will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.

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Thanks for reading and bye for now.
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