How can timestamps be used correctly in the date() function in PHP?

When using timestamps in the date() function in PHP, it is important to ensure that the timestamp is in the correct format for the function to interpret it correctly. To do this, you can use the strtotime() function to convert a date string into a Unix timestamp before passing it to the date() function. 

// Correctly using timestamps in the date() function
$timestamp = strtotime('2023-05-15');
echo date('Y-m-d', $timestamp);

Keywords

timestamps date() PHP datetime formatting

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