Two Array Queue Algorithm in php - php

Question

I have two array, and want to have queueing system in third array in php
Array 1
3
4
5
6
7
Array 2
24 => U //Unavailable
39 => A //Available
55 => A //Available
77 => A //Available
Result expected:-
So in Array 3 I want the one's that are Available
Array 3
39 => 3
55 => 4
77 => 5
Also the data from Array 1 should get deleted once it is assigned to Array 3.
Array 1 should become
6
7
Let me know. Thanks in advance.

Answer 1

I would start with the numbers from $array2 which are available.
$availables = [];
foreach ($array2 as $key => $value) {
if ($value == 'A') $availables[] = $key;
}
Now we have two arrays: $availables and $array1 one, and we need to combine them where one represents the keys and the other the values of the new array. You would do this with this function:
http://nl1.php.net/manual/en/function.array-combine.php
The only thing we need to be careful about is the size of the arrays, so:
$size1 = count($array1);
$size2 = count($availables);
if ($size1 > $size2) $array1 = array_slice($array1,0,$size2);
if ($size2 > $size1) $availables = array_slice($availables,0,$size1);
and then we can combine them:
$array3 = array_combine($availables,$array1);
See: https://eval.in/1056040
It would be better to put this in a function or a method, so that changes in the arrays don't affect the original arrays.
There are, of course, lot's of other ways to do the last two steps, for instance:
$array3 = [];
foreach ($array1 as $key => $number)
{
if (!isset($availables[$key])) break;
$array3[$availables[$key]] = $number;
}
See: https://eval.in/1056044

Answer 2

foreach($array[1] as $key => $value){
if($value === 'A') $array[2][$key] = $value;
}

Answer 3

I would do something like this:
<?php
$quee = range(1, 100);
$stations = ['1' => ['status' => 'A', 'client' => ''], '2' => ['status' => 'A', 'client' => ''], '3' => ['status' => 'U', 'client' => null], '4' => ['status' => 'A', 'client' => '']];
while ($quee) {
foreach ($stations as $name => &$station) {
if ($station['status'] === 'U') {
echo 'Station ' . $name . ' is busy' . PHP_EOL;
$station['status'] = 'A';
} else {
$station['status'] = 'U';
$client = array_shift($quee);
if ($client != null) {
$station['client'] = $client;
echo 'Im doing client ' . $client . ' on station ' . $name . PHP_EOL;
} else {
break;
}
}
}
}