FILTER_THROW_ON_FAILURE flag?

[divinity76]

Description

a FILTER_THROW_ON_FAILURE alternative to the existing FILTER_NULL_ON_FAILURE would be nice. Could behave pretty much like the existing JSON_THROW_ON_ERROR

usage scenario: replace code like

$b = filter_var($v1, FILTER_VALIDATE_BOOL, FILTER_NULL_ON_FAILURE);
if($b === null) {
    throw new ValueError("failed FILTER_VALIDATE_BOOL");
}
$i = filter_var($v2, FILTER_VALIDATE_INT);
if($i === false) {
    throw new ValueError("failed FILTER_VALIDATE_INT");
}

with

$b = filter_var($v1, FILTER_VALIDATE_BOOL, FILTER_THROW_ON_FAILURE);
$i = filter_var($v2, FILTER_VALIDATE_INT, FILTER_THROW_ON_FAILURE);

[cmb69]

Makes sense, but we need to consider the behavior of filter_var_array().

[iluuu1994]

This has some overlap with pattern matching, more specifically the as keyword. It's not a full alternative, given that pattern matching doesn't support e-mails, URLs, etc.

[DanielEScherzer]

Makes sense, but we need to consider the behavior of filter_var_array().

I'd say that any time FILTER_NULL_ON_FAILURE would trigger returning null, we would throw, to be consistent

This probably needs an RFC the same way that https://wiki.php.net/rfc/json_throw_on_error did, I'll add this to my list but I already have two RFCs under discussion at the moment