What is the best way to automatically insert the first and last day of the current month into a PHP query?

To automatically insert the first and last day of the current month into a PHP query, you can use the `date()` function along with `strtotime()` to get the first day of the month and `date()` with `t` parameter to get the last day of the month. This way, you can dynamically generate the start and end dates for your query without hardcoding them.

// Get the first day of the current month
$firstDay = date('Y-m-01');

// Get the last day of the current month
$lastDay = date('Y-m-t');

// Use $firstDay and $lastDay in your query
$query = "SELECT * FROM table_name WHERE date_column BETWEEN '$firstDay' AND '$lastDay'";