Validate date and time

date_time.php

function validateDateTime($value){
        $array = explode(" ", $value);
    
        if(count($array) != 2){
            return 'Kindly separate your date and time in this format for example, 11/12/2020 2.20pm';
        }
        //validate date
        $date = $array[0];
        if(preg_match("/^(0?[1-9]|[12][0-9]|3[01])[\/\-](0?[1-9]|1[012])[\/\-]\d{4}$/", $date) === 0) {
            return 'Your date '.$date.' is in an invalid format';
        }

        //validate
        $time = $array[1];
        if(preg_match("/^(0?[1-9]|1[0-2]):[0-5][0-9](?:am|pm)$/", $time) === 0) {
            return 'Your time '.$time.' is in an invalid format';
        }

        return true;
    }

$value = '20-12-2000 13:30pm';
validateDateTime($value)