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Date: Sat, 05 Apr 2025 21:46:58 +0200
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Subject: Re: [PHP-DEV] RFC: blank() Function as a Complement to empty()
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From: rob@bottled.codes ("Rob Landers")

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On Sat, Apr 5, 2025, at 21:23, Bilge wrote:
> On 05/04/2025 20:18, Rob Landers wrote:
>> On Sat, Apr 5, 2025, at 21:10, Bilge wrote:
>>> On 05/04/2025 19:41, Rob Landers wrote:
>>>> empty() has very many uses.
>>> That is exactly the same as saying `=3D=3D` has many uses. It does. =
So many uses that it's useless. Its semantics are nonsense.
>>>>=20
>>>> if (isset($var) && $varl !=3D false) {
>>>>   foo($bool);
>>>> }
>>>>=20
>>> >$varl !=3D false
>>>=20
>>> You should never be doing this.
>>>=20
>>> Cheers,
>>> Bilge
>>=20
>> Heh, to quote a great movie: That's just like, your opinion, man. In =
all seriousness, there are quite a number of uses for =3D=3D, especially=
 because we don't have operators on objects, nor do we have value object=
s. Sometimes, equality isn't based on identity, but on value:
>>=20
>> https://3v4l.org/rRMNR
>>=20
>> =E2=80=94 Rob
> You don't use empty() on objects.
>=20

I initially thought your comment was focused specifically on the use of =
=3D=3D, rather than "=3D=3D false" or "!=3D false." That said, I think a=
ll of these have valid use cases, as does empty(). I'm not entirely clea=
r on the point you're trying to make, though =E2=80=94 if the argument i=
s simply "you should never be doing this," it would be helpful to unders=
tand the reasoning behind that perspective. Without context or elaborati=
on, it comes across more as a personal preference than a technical guide=
line.

=E2=80=94 Rob
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<!DOCTYPE html><html><head><title></title><style type=3D"text/css">=0Ap.=
MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div><br></div><d=
iv><br></div><div>On Sat, Apr 5, 2025, at 21:23, Bilge wrote:<br></div><=
blockquote type=3D"cite" id=3D"qt" style=3D""><div class=3D"qt-moz-cite-=
prefix">On 05/04/2025 20:18, Rob Landers wrote:<br></div><blockquote typ=
e=3D"cite" cite=3D"mid:d332d5d8-702e-41d6-b261-403cc1811bcc@app.fastmail=
.com"><div>On Sat, Apr 5, 2025, at 21:10, Bilge wrote:<br></div><blockqu=
ote type=3D"cite" id=3D"qt-qt" style=3D""><div class=3D"qt-qt-moz-cite-p=
refix">On 05/04/2025 19:41, Rob Landers=0A          wrote:<br></div><blo=
ckquote type=3D"cite" cite=3D"mid:f327f299-c826-4269-94f6-6cf28fcbc582@a=
pp.fastmail.com"><div>empty() has very many uses.<br></div></blockquote>=
<div>That is exactly the same as saying `=3D=3D` has many uses. It=0A   =
       does. So many uses that it's useless. Its semantics are=0A       =
   nonsense.<br></div><blockquote type=3D"cite" cite=3D"mid:f327f299-c82=
6-4269-94f6-6cf28fcbc582@app.fastmail.com"><div><br></div><div>if (isset=
($var) &amp;&amp; $varl !=3D false) {<br></div><div>&nbsp; foo($bool);<b=
r></div><div>}<br></div><div><br></div></blockquote><p>&gt;$varl !=3D fa=
lse<br></p><p>You should never be doing this.<br></p><div>Cheers,<br></d=
iv><div>Bilge<br></div></blockquote><div><br></div><div>Heh, to quote a =
great movie:&nbsp;That's just like, your opinion,=0A        man. In all =
seriousness, there are quite a number of uses for=0A        =3D=3D, espe=
cially because we don't have operators on objects, nor=0A        do we h=
ave value objects. Sometimes, equality isn't based on=0A        identity=
, but on value:<br></div><div><br></div><div><a href=3D"https://3v4l.org=
/rRMNR" class=3D"qt-moz-txt-link-freetext">https://3v4l.org/rRMNR</a><br=
></div><div><br></div><div id=3D"qt-sig121229152">=E2=80=94 Rob<br></div=
></blockquote><p>You don't use empty() on objects.<br></p></blockquote><=
div><br></div><div>I initially thought your comment was focused specific=
ally on the use of =3D=3D, rather than "=3D=3D false" or "!=3D false." T=
hat said, I think all of these have valid use cases, as does empty(). I'=
m not entirely clear on the point you're trying to make, though =E2=80=94=
 if the argument is simply "you should never be doing this," it would be=
 helpful to understand the reasoning behind that perspective. Without co=
ntext or elaboration, it comes across more as a personal preference than=
 a technical guideline.<br></div><div><br></div><div id=3D"sig121229152"=
>=E2=80=94 Rob<br></div></body></html>
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