> The “any” check is just to if anything in the iterable passes the predicate,
> yeah??
>
> What I find myself doing more often is wanting the first thing to satisfy the
> predicate - a “first” function, if you will.
There's multiple things such a function could return - The key of the entry
(could be false/null), the value of the entry (could be false/null), or a
combination of the key and value (rarely what we want).
I'm not aware of any exact matches for that - array_filter processes all
values, and array_search doesn't accept a callback.
`array_search_callback()` could be added, but I don't plan to expand the scope
of this RFC and there are multiple ways to do that.
> This could skip the step of iterating to find of something satisfies the
> predicate. Then iterating again to get one or more items that do satisfy it.
>
> Trying to think of a use case where I would want to check, but not do
> anything with that knowledge.
Anywhere where you'd want to check for membership in a short-circuiting way,
similar to situations where `||` or `&&` would be called,
but with a variable number of callbacks or repeating the same operation
multiple times.
It also reduces the indentation and line count needed
```
$this->assertTrue(all($valueList, fn($v) => $v->isValid()));
all($startupCallbacks, 'call_user_func') || exit("startup failed");
if (any($fieldList, fn($field) => in_array($field->name, ['fooEnabled',
'fooEnabled2']))) {
doFoo();
}
```
- Tyson
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