What are the best practices for converting dates to timestamps and vice versa in PHP?

When converting dates to timestamps in PHP, the `strtotime()` function can be used to convert a date string to a Unix timestamp. To convert a timestamp back to a date string, the `date()` function can be used with the desired format. It's important to ensure that the date string provided is in a format recognized by `strtotime()` to avoid unexpected results. 

// Convert a date string to a timestamp
$dateString = '2022-01-01';
$timestamp = strtotime($dateString);

// Convert a timestamp to a date string
$timestamp = time();
$dateString = date('Y-m-d', $timestamp);

Keywords

DateTime strtotime date_format timestamp conversion

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