Comparison Operators >= in Control Structures why false?

PHP has no way of knowing that your dates are dates. There are a number of ways you could handle it, but the simplest would be to wrap your dates in strtotime()

PHP Code:

$date  = '2019-04-07';

$date1 = '2019-04-01';
$date2 = '2019-04-15';
$date3 = '2019-04-16';
$date4 = '2019-04-30';

if( 
    strtotime($date) >= strtotime($date1) && 
    strtotime($date) <= strtotime($date2) 
){
    //...
} else {
    //...
} 


SOLVED. THANK YOU FOR HELPING