What potential errors or pitfalls can occur when using strtotime for date calculations in PHP?

When using strtotime for date calculations in PHP, potential errors or pitfalls can occur due to the ambiguity in date formats and timezones. To avoid these issues, it's recommended to explicitly set the timezone and use a specific date format when using strtotime. 

// Set the timezone to avoid ambiguity
date_default_timezone_set('America/New_York');

// Use a specific date format to ensure accurate calculations
$date = '2022-01-01';
$new_date = date('Y-m-d', strtotime($date . ' +1 day'));

echo $new_date; // Output: 2022-01-02

Keywords

strtotime date calculations PHP errors pitfalls

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