How can PHP scripts be used to prevent incorrect date entries, such as entering February 30th?

To prevent incorrect date entries like entering February 30th, we can use PHP to validate the date input before processing it. One way to do this is by using the `checkdate()` function in PHP, which checks if a given date is valid. By validating the date input before proceeding with any operations, we can ensure that only valid dates are accepted. 

$date = "2022-02-30";
$date_parts = explode('-', $date);

if (checkdate($date_parts[1], $date_parts[2], $date_parts[0])) {
    echo "Valid date: " . $date;
} else {
    echo "Invalid date: " . $date;
}

Keywords

PHP date validation strtotime DateTime error handling

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