What are some potential pitfalls when trying to extract upcoming birthdays from an array without using MySQL queries in PHP?

When trying to extract upcoming birthdays from an array without using MySQL queries in PHP, potential pitfalls include not properly handling date formats, timezone conversions, and leap year considerations. To solve this, you can iterate through the array, compare each birthday to the current date, and filter out the upcoming birthdays. 

<?php
$birthdays = ['1990-05-15', '1985-08-20', '1995-03-10', '2000-01-25'];
$upcoming_birthdays = [];

$current_date = date('Y-m-d');

foreach ($birthdays as $birthday) {
    $birthday_date = date('Y-m-d', strtotime($birthday));
    
    if ($birthday_date >= $current_date) {
        $upcoming_birthdays[] = $birthday_date;
    }
}

print_r($upcoming_birthdays);
?>

Keywords

array PHP birthdays date functions manipulation

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