What are some common methods to convert a date to a timestamp in PHP?
When working with dates in PHP, it is common to need to convert a date to a timestamp for various operations such as comparisons or calculations. One common method to convert a date to a timestamp is by using the strtotime() function in PHP. This function takes a date string as input and returns a Unix timestamp representing that date.
$date = "2022-01-15";
$timestamp = strtotime($date);
echo $timestamp;
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