How Can I Find the First Day of the Week in PHP?

Determining the First Day of the Week in PHP

When working with dates in PHP, it can be useful to obtain the first day of the week for a given date. This information can be leveraged for scheduling, analytics, or any application that requires a granular understanding of time.

To acquire the first day of the week from a specified date in the MM-dd-yyyy format, follow these steps:

Step 1: Retrieving the Day of the Week

$day = date('w');

This line of code captures the current day of the week as a number ranging from 0 to 6, where Sunday corresponds to 0 and Saturday corresponds to 6.

Step 2: Calculating the First Day of the Week

$week_start = date('m-d-Y', strtotime('-'.$day.' days'));

Using the day of the week, this line calculates the date of the preceding Sunday by subtracting the appropriate number of days. Sunday, being the first day of the week, is selected to represent the beginning of the current week.

Step 3: Determining the Last Day of the Week

$week_end = date('m-d-Y', strtotime('+'.(6-$day).' days'));

Conversely, this line calculates the date of the upcoming Saturday by adding the remaining number of days. Saturday, being the last day of the week, is selected to represent the end of the current week.

Result:

Following these steps will provide you with the dates for both the first day (Sunday) and last day (Saturday) of the week containing the original specified date. These variables can then be utilized for further analysis or processing.

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