How can a PHP developer compare a year extracted from a string to a predefined year value?

To compare a year extracted from a string to a predefined year value in PHP, you can use the `DateTime` class to convert the extracted year and predefined year into `DateTime` objects. Then, you can compare the years using the `format('Y')` method to extract the year as a string and compare them using simple conditional statements. 

// Example code snippet to compare a year extracted from a string to a predefined year value
$extractedYear = '2022'; // Year extracted from a string
$predefinedYear = '2021'; // Predefined year value

// Convert extracted year and predefined year into DateTime objects
$extractedYearObj = DateTime::createFromFormat('Y', $extractedYear);
$predefinedYearObj = DateTime::createFromFormat('Y', $predefinedYear);

// Compare the years
if ($extractedYearObj->format('Y') == $predefinedYearObj->format('Y')) {
    echo "The extracted year matches the predefined year.";
} else {
    echo "The extracted year does not match the predefined year.";
}

Keywords

PHP string manipulation date comparison predefined value strtotime

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