How to get last day of a month from date in PHP ? (original) (raw)

Last Updated : 12 Jul, 2025

Given a date and the task is to print the last day of the month. We will use date() and strtotime() function to get the last day of the month.

**Used PHP functions:

• **date() function: Format a local time/date.
• **strtotime() function: Parse about any English textual datetime description into a Unix timestamp.

**Examples:

Input: 2020-04-23
Output: Thursday

Input: '2018-09-11'
Output: Sunday

**Approach:

• Given a date stored in a variable as a string, the step is to convert it into date format using strtotime() function.
• Once we get the date, we will employ date() method. **Syntax:
  date( format,format, format,timestamp )
• Within format,wewillpass"Y−m−t"andwithinformat, we will pass "Y-m-t" and within format,wewillpass"Y−m−t"andwithintimestamp the date taken above. In terms of date "Y" gives a full numeric representation of a year in 4 digits, "m" provides numeric representation of a month and "t" gives the number of days in the given month.
• By using "Y-m-t", we will get the number of days in a month because of "t", "m" and "Y" will provide the month and the year.
• The last step is to use the date() again with "l" for format and the date achieved above as $timestamp.
• Display the day.

**Program:

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Using DateTime Class

In this approach, we utilize the DateTime class in PHP to get the last day of the month. The DateTime class provides a powerful and flexible way to manipulate and format dates. We can take advantage of its methods to achieve the task efficiently.

**Example: The following example demonstrates how to use the DateTime class to get the last day of the month and print the day of the week.

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