To add years to a date in PHP, you can use the DateTime class and its add() method. Here’s a step-by-step guide on how to do it:

Step 1: Create a DateTime object representing the initial date.

$initialDate = new DateTime('2023-08-03');

Step 2: Define the number of years you want to add.

$yearsToAdd = 1; // Change this value to the number of years you want to add.

Step 3: Use the add() method to add the years to the date.

$modifiedDate = $initialDate->add(new DateInterval('P' . $yearsToAdd . 'Y'));

Step 4: Retrieve the modified date as a string in the desired format.

$modifiedDateString = $modifiedDate->format('Y-m-d');

Now, $modifiedDateString will contain the date with the added year. You can change the format in the format() function as per your requirements.

Here’s the complete code:

$initialDate = new DateTime('2023-08-03');
$yearsToAdd = 1; // Change this value to the number of years you want to add.
$modifiedDate = $initialDate->add(new DateInterval('P' . $yearsToAdd . 'Y'));
$modifiedDateString = $modifiedDate->format('Y-m-d');
echo $modifiedDateString;

Remember to modify the $yearsToAdd variable to the desired number of years you want to add.