Description:
------------
as can be seen here https://3v4l.org/BBUsI , 
 FILTER_VALIDATE_FLOAT supports min_range / max_range in >= 7.4.0 , 
but it's not documented anywhere as far as i can see, but there's 3 places i can think of where documentation would be appropriate: 

1: the 7.4.0 changelog at https://www.php.net/ChangeLog-7.php#7.4.0

2: the FILTER_VALIDATE_FLOAT documentation at https://www.php.net/manual/en/filter.filters.validate.php

3: (maybe? not sure?) the filter_var() documentation at https://www.php.net/manual/en/function.filter-var.php

Test script:
---------------
<?php

var_dump(
    filter_var(5,FILTER_VALIDATE_INT,array('options'=>array('min_range'=>6))),
    filter_var(5,FILTER_VALIDATE_FLOAT,array('options'=>array('min_range'=>6)))
    );

Expected result:
----------------
bool(false)
bool(false)


Actual result:
--------------
php < 7.4.0: 
bool(false)
float(5)
php >= 7.4.0: 
bool(false)
bool(false)