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Re: Need help accessing the key array. [message #185429 is a reply to message #185425] Mon, 31 March 2014 03:15 Go to previous messageGo to previous message
Kevin Burton is currently offline  Kevin Burton
Messages: 9
Registered: March 2014
Karma:
Junior Member
On Sunday, March 30, 2014 6:55:22 PM UTC-5, Jerry Stuckle wrote:
> On 3/30/2014 6:40 PM, Kevin Burton wrote:
>
>> On Saturday, March 29, 2014 3:49:37 PM UTC-5, Kongthap Thammachat wrote:
>
>>> <?php
>
>>>
>
>>>
>
>>>
>
>>> $rates = array(
>
>>>
>
>>> array("animal" => 0, "color" => 0, "rate" => 5),
>
>>>
>
>>> array("animal" => 0, "color" => 1, "rate" => 10),
>
>>>
>
>>> array("animal" => 0, "color" => 2, "rate" => 15),
>
>>>
>
>>> array("animal" => 1, "color" => 0, "rate" => 20),
>
>>>
>
>>> array("animal" => 1, "color" => 1, "rate" => 25),
>
>>>
>
>>> array("animal" => 1, "color" => 2, "rate" => 30),
>
>>>
>
>>> array("animal" => 2, "color" => 0, "rate" => 35),
>
>>>
>
>>> array("animal" => 2, "color" => 1, "rate" => 40),
>
>>>
>
>>> array("animal" => 2, "color" => 2, "rate" => 45),
>
>>>
>
>>> array("animal" => 3, "color" => 0, "rate" => 50),
>
>>>
>
>>> array("animal" => 3, "color" => 1, "rate" => 55),
>
>>>
>
>>> array("animal" => 3, "color" => 2, "rate" => 60)
>
>>>
>
>>> );
>
>>>
>
>>>
>
>>>
>
>>> $input_animal = 1;
>
>>>
>
>>> $input_color = 2;
>
>>>
>
>>>
>
>>>
>
>>> ?>
>
>>>
>
>>>
>
>>>
>
>>> How to access the $rates array to echo the associated rate of "animal" => 1 and "color" => 2 ? (which is 30), should i re-designed the $rates array?
>
>>>
>
>>>
>
>>>
>
>>> Thanks
>
>>
>
>> I don't think there is a way to reference the array as I understand you want to (at least I don't know of a way). But perhaps the following classes will give you the results that you desire:
>
>>
>
>> class FilterClass {
>
>> private $input;
>
>> private $filter;
>
>> function __construct($filter, $input) {
>
>> $this->filter = $filter;
>
>> $this->input = $input;
>
>> }
>
>> function FilteredArray() {
>
>> return array_filter($this->input, function($val) {
>
>> $matched = false;
>
>> foreach(array_keys($this->filter) as $filter_key) {
>
>> if($val[$filter_key] == $this->filter[$filter_key]) {
>
>> $matched = true;
>
>> } else {
>
>> $matched = false;
>
>> break;
>
>> }
>
>> }
>
>> return $matched;
>
>> });
>
>> }
>
>> };
>
>>
>
>> class ReduceClass {
>
>> private $input;
>
>> private $filter;
>
>> function __construct($filter, $input) {
>
>> $this->filter = $filter;
>
>> $this->input = $input;
>
>> }
>
>> function ReducedArray() {
>
>> return array_reduce($this->input, function($acc, $val) {
>
>> $matched = false;
>
>> foreach(array_keys($this->filter) as $filter_key) {
>
>> if($val[$filter_key] == $this->filter[$filter_key]) {
>
>> $matched = true;
>
>> } else {
>
>> $matched = false;
>
>> break;
>
>> }
>
>> }
>
>> if($matched) {
>
>> array_push($acc, $val);
>
>> }
>
>> return $acc;
>
>> }, array());
>
>> }
>
>> };
>
>>
>
>>
>
>> $rates = array(
>
>> array("animal" => 0, "color" => 0, "rate" => 5),
>
>> array("animal" => 0, "color" => 1, "rate" => 10),
>
>> array("animal" => 0, "color" => 2, "rate" => 15),
>
>> array("animal" => 1, "color" => 0, "rate" => 20),
>
>> array("animal" => 1, "color" => 1, "rate" => 25),
>
>> array("animal" => 1, "color" => 2, "rate" => 30),
>
>> array("animal" => 2, "color" => 0, "rate" => 35),
>
>> array("animal" => 2, "color" => 1, "rate" => 40),
>
>> array("animal" => 2, "color" => 2, "rate" => 45),
>
>> array("animal" => 3, "color" => 0, "rate" => 50),
>
>> array("animal" => 3, "color" => 1, "rate" => 55),
>
>> array("animal" => 3, "color" => 2, "rate" => 60)
>
>> );
>
>> $fc = new FilterClass(array("animal" => 1, "color" => 2), $rates);
>
>> $filtered_array = $fc->FilteredArray();
>
>> var_dump($filtered_array);
>
>>
>
>> Or
>
>>
>
>> $rates = array(
>
>> array("animal" => 0, "color" => 0, "rate" => 5),
>
>> array("animal" => 0, "color" => 1, "rate" => 10),
>
>> array("animal" => 0, "color" => 2, "rate" => 15),
>
>> array("animal" => 1, "color" => 0, "rate" => 20),
>
>> array("animal" => 1, "color" => 1, "rate" => 25),
>
>> array("animal" => 1, "color" => 2, "rate" => 30),
>
>> array("animal" => 2, "color" => 0, "rate" => 35),
>
>> array("animal" => 2, "color" => 1, "rate" => 40),
>
>> array("animal" => 2, "color" => 2, "rate" => 45),
>
>> array("animal" => 3, "color" => 0, "rate" => 50),
>
>> array("animal" => 3, "color" => 1, "rate" => 55),
>
>> array("animal" => 3, "color" => 2, "rate" => 60)
>
>> );
>
>> $fc = new ReduceClass(array("animal" => 1, "color" => 2), $rates);
>
>> $filtered_array = $fc->ReducedArray();
>
>> var_dump($filtered_array);
>
>>
>
>
>
> A decent idea, but much harder than it needs to be. A simple two
>
> dimensional array suffices for what he needs. See the other updates in
>
> this thread.
>
>
>
> --
>
> ==================
>
> Remove the "x" from my email address
>
> Jerry Stuckle
>
> jstucklex(at)attglobal(dot)net
>
> ==================

In order for a 2D array to work you have to change the input array and the input parameters. Right?
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