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References: <CAOrgP8v0AGF10JGep-YaqC+w73gAjewUwjRN8-AbxmO3wG-iJA@mail.gmail.com>
In-Reply-To: <CAOrgP8v0AGF10JGep-YaqC+w73gAjewUwjRN8-AbxmO3wG-iJA@mail.gmail.com>
Date: Wed, 4 Dec 2024 14:15:36 -0300
Message-ID: <CAGS0MVAJQ=J-EZWbmtamqrr-35icEjrEZv+5cZRpCqT=1_Yf6A@mail.gmail.com>
Subject: Re: [PHP-DEV] Multiple property assigning without constructor
To: Taras Chornyi <taras.chr@gmail.com>
Cc: internals@lists.php.net
Content-Type: multipart/alternative; boundary="000000000000474b72062874f087"
From: ericklima.comp@gmail.com (Erick de Azevedo Lima)

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>
> $person = new Person("Name", 43) {
>
      firstName: "John",
>
      age: 42
>
   };



Hi!

You could achieve similar functionality with a simple user-land method
"assign". If you put such a method on a trait, you can use it everywhere.

See the example:

<?php

trait AssignsPropertiesValues
{
    public function assign(...$props): static
    {
        foreach ($props as $propName => $propVal) {
            $this->$propName = $propVal;
        }

        return $this;
    }
}

class Person
{
    use AssignsPropertiesValues;

    public function __construct(
        public string $firstName,
        public int $age
    ) {
    }
}

class Person2
{
    use AssignsPropertiesValues;

    public string $firstName;
    public int $age;
}

class Person3
{
    use AssignsPropertiesValues;

    public string $firstName { set => \strtoupper($value); }
    public int $age;
}

$p1 = new Person('Pig',5)->assign(firstName: 'Peppa', age: 6);
$p2 = new Person2()->assign(firstName: 'George', age: 3);
$p3 = new Person3()->assign(firstName: 'Danny', age: 7);

var_dump($p1, $p2, $p3);

https://3v4l.org/F83NO#v8.4.1

Best regards,
Erick

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<div dir=3D"ltr"><div dir=3D"ltr"><div><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padd=
ing-left:1ex">$person =3D new Person(&quot;Name&quot;, 43) { <br></blockquo=
te><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bord=
er-left:1px solid rgb(204,204,204);padding-left:1ex">=C2=A0 =C2=A0 =C2=A0 f=
irstName: &quot;John&quot;, <br></blockquote><blockquote class=3D"gmail_quo=
te" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204=
);padding-left:1ex">=C2=A0 =C2=A0 =C2=A0 age: 42 <br></blockquote><blockquo=
te class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex">=C2=A0=C2=A0 };</blockquote><div><=
br></div><br>Hi!<br><br></div>You could achieve similar functionality with =
a simple user-land method &quot;assign&quot;. If you put such a method on a=
 trait, you can use it everywhere.<br><br>See the example:<br><br>&lt;?php<=
br><br>trait AssignsPropertiesValues<br>{<br>=C2=A0 =C2=A0 public function =
assign(...$props): static<br>=C2=A0 =C2=A0 {<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0=
 foreach ($props as $propName =3D&gt; $propVal) {<br>=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 $this-&gt;$propName =3D $propVal;<br>=C2=A0 =C2=A0 =C2=
=A0 =C2=A0 }<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 <br>=C2=A0 =C2=A0 =C2=A0 =C2=A0=
 return $this;<br>=C2=A0 =C2=A0 }<br>}<br><br>class Person<br>{<br>=C2=A0 =
=C2=A0 use AssignsPropertiesValues;<br>=C2=A0 =C2=A0 <br>=C2=A0 =C2=A0 publ=
ic function __construct(<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 public string $firs=
tName,<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 public int $age<br>=C2=A0 =C2=A0 ) {<=
br>=C2=A0 =C2=A0 }<br>}<br><br>class Person2<br>{<br>=C2=A0 =C2=A0 use Assi=
gnsPropertiesValues;<br><br>=C2=A0 =C2=A0 public string $firstName;<br>=C2=
=A0 =C2=A0 public int $age;<br>}<br><br>class Person3<br>{<br>=C2=A0 =C2=A0=
 use AssignsPropertiesValues;<br><br>=C2=A0 =C2=A0 public string $firstName=
 { set =3D&gt; \strtoupper($value); }<br>=C2=A0 =C2=A0 public int $age;<br>=
}<br><br>$p1 =3D new Person(&#39;Pig&#39;,5)-&gt;assign(firstName: &#39;Pep=
pa&#39;, age: 6);<br>$p2 =3D new Person2()-&gt;assign(firstName: &#39;Georg=
e&#39;, age: 3);<br>$p3 =3D new Person3()-&gt;assign(firstName: &#39;Danny&=
#39;, age: 7);<br><br><div>var_dump($p1, $p2, $p3);</div><div><br></div><di=
v><a href=3D"https://3v4l.org/F83NO#v8.4.1">https://3v4l.org/F83NO#v8.4.1</=
a><br><br></div><div>Best regards,<br></div><div>Erick<br></div></div></div=
>

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