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Date: Mon, 20 Aug 2012 18:44:45 +0100
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Subject: Re: [PHP-DEV] re: removing an item from an array
From: ajf@ajf.me (Andrew Faulds)

On 20/08/12 18:43, Sebastian Krebs wrote:
> Am 20.08.2012 19:00, schrieb Andrew Faulds:
>> On 20/08/12 17:47, Herman Radtke wrote:
>>>>> May be we should have something like
>>>>>> array_delete_if($array, function($v, $k=null) { if ($v == 300) 
>>>>>> return
>>>> true; })
>>>>> So array_filter?
>>>> I'll use it or like for deleting, but the point of this thread is
>>>> "intuitive function for deleting element(s)"
>>>>
>>>> array_delete($array, $value|callable)
>>>>
>>>> would be nicer for users, perhaps.
>>>
>>> You are basically asking to alias array_filter with "array_delete".
>>> That is
>>> a very slippery slope. I think array_filter is very a very obvious 
>>> choice
>>> to remove something from an array. The "filter" function/method is 
>>> common
>>> in functional languages (and functional frameworks like Underscore).
>>>
>>> These are things developers just need to learn as part of development.
>>> Really, this is entire thread should be on stack overflow, not 
>>> internals.
>>>
>> You seem a little arrogant. Arguably, a lot of array functions are
>> unnecessary. But PHP is not supposed to be an extremely minimal
>> language. Convenience functions are a good thing.
>>
>> We have array_pad for instance: completely unnecessary, you can do it
>> manually with other array functions. Array_fill_keys and array_fill,
>> too. array_flip is also unnecessary. Heck, who needs sorting, you can do
>> that manually too.
>>
>> array_delete would be a more convenient, and more readable way to remove
>> a value from an array. Yes, you can already remove array items, that's
>> not the point. The point is this way is simpler and more convenient.
>
> So you just want a convenient and readable way and you realise 
> yourself, that it is really simple to implement. So: Why don't you 
> just implement it yourself?
>
>
> function array_delete($array, $value) {
>   // Your code here
> }
>
>
> What I don't understand is, why should every function goes directly 
> into the core, if you can achieve exactly the same without core changes?
>
I'd rather not argue any further about this (let's make an RFC and 
vote). I've already addressed this point.

> Regards,
> Sebastian
>
>>
>> Also, as someone else mentioned, PHP's universal collection datatype is
>> a great thing. It is an associative array, it is a list, it is a tuple,
>> it is a set, it can be used in many ways, it's incredibly versatile.
>> Adding array_delete would allow you to use it like a set more easily.
>>
>> Just my 2½¢ :)
>>
>
>


-- 
Andrew Faulds
http://ajf.me/