> On Oct 23, 2020, at 2:33 PM, Rowan Tommins <[email protected]> wrote:
>
> I don't follow; is the resulting JSON different if you cast to object, or is
> there some other reason you prefer an object over using an associative array
> directly?
The by-reference semantics of objects vs arrays in PHP.
> Also, to clarify my earlier comment about stdClass not being necessary now we
> have anonymous classes, I meant it very directly: every time you write "new
> stdClass" you can write "new class {}" instead.
>
> The fact that "(object)$foo" creates an instance of "stdClass" rather than an
> instance of "class{}" is just a historical wart, which can be easily replaced:
>
> function array_to_object($arr): object {
> $obj = new class {};
> foreach ( $arr as $key => $value ) {
> $obj->{$key} = $value;
> }
> return $obj;
> }
That pattern can have a non-insignificant performance penalty when dealing with
a large number of objects, a use-case that is not infrequent when processing
JSON, especially responses returned via an HTTP API.
> On Oct 23, 2020, at 11:08 AM, Andreas Bittner <[email protected]> wrote:
>
> Wouldn't it be opportune to just use named arguments?
>
> $x = new \stdClass(
> prop: new \stdClass(
> a: $a,
> b: $b
> )
> );
You illustrate of useful pattern here.
What would be nicer, however, would be an object instantiation shorthand that
would omit the "new" by using braces:
$x = \stdClass{
prop: \stdClass{
a: $a,
b: $b,
},
}
Also:
$x = \Foo{
prop: \Bar{
a: $a,
b: $b,
},
}
And for instantiating anonymous classes:
$x = {
prop: {
a: $a,
b: $b,
},
}
-Mike
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