take indexes between repeated values - php

Question

how can I get everything from a repeated index and the other in an array? see:
$Produtos = Array( 'Guitarra' , // repeats
'Bateria' , // repeats
'Piano' ,
'Baixo' ,
'Guitarra' , // repeats
'Violão' ,
'Caixas de Som' ,
'Bateria' , // repeats
'Sanfona' );
Reviewed are the indices that are repeated, as I do to get what's between them?
I wish to return:`
Array
(
[0] => Array(
[0] => Piano
[1] => Baixo
[1] => Array(
[0] => Violão
[1] => Caixas de Som
[2] => Array(
[0] => Sanfona
) )

Answer 1

It can be solved like this:
<?php
<?php
$Produtos = Array( 'Guitarra' , // repeats
'Bateria' , // repeats
'Piano' ,
'Baixo' ,
'Guitarra' , // repeats
'Violão' ,
'Caixas de Som' ,
'Bateria' , // repeats
'Sanfona' );
$countedProducts = array_count_values($Produtos);
$c = 0;
foreach ($Produtos as $product)
{
if ($countedProducts[$product] > 1)
{
if (count($novosProdutos))
{
$c++;
}
}else{
$novosProdutos[$c][] = $product;
}
}
print '<pre>';
var_dump($novosProdutos);
print '</pre>';
?>
Output:
array(3) {
[0]=>
array(2) {
[0]=>
string(5) "Piano"
[1]=>
string(5) "Baixo"
}
[1]=>
array(2) {
[0]=>
string(7) "Violão"
[1]=>
string(13) "Caixas de Som"
}
[2]=>
array(1) {
[0]=>
string(7) "Sanfona"
}
}
I have understood in the meantime, what you really wanted to have as an result. I changed it now, and it work also with multiple repeations and starts always from zero.

Answer 2

$finalProducts = array();
$currentKey = 0;
$wordCount = array_count_values($Produtos);
foreach($Produtos as $val) {
if($wordCount[$val] > 1) {
$currentKey++;
}
elseif(strlen($currentKey) > 0) {
$finalProducts[$currentKey][] = $val;
}
}
$finalProducts = array_values($finalProducts);

Answer 3

<?php
function array_between_duplicates($ary)
{
// first, tally up all the values
// we need to know how many times each value repeats
$count = array_count_values($ary);
// next, we want only the values that are not repeated.
// This can be done by filtering the array for values
// present 2+ times
$between = array_filter($count, create_function('$a','return $a==1;'));
// now that we have the unique values, swap the keys
// and value locations using array_keys
$swap = array_keys($between);
// and then intersect the new array with the original
// array so we can get back their original key values.
$intersect = array_intersect($ary, $swap);
var_dump($intersect);
// now, in order to get the nested groups we will use
// skipped keys as a sign that the in-between values
// were repeats. So, iterate over the array and break
// out these groups
$result = array(); $group = array();
foreach ($ary as $key => $value)
{
if (!array_key_exists($key, $intersect) && count($group) > 0)
{
$result[] = $group;
$group = array();
}
if (array_search($value,$intersect) !== false)
$group[] = $value;
}
if (count($group) > 0)
$result[] = $group;
// return the result
return $result;
}
var_dump(array_between_duplicates($Produtos));
Results in:
array(3) {
[0]=>
array(2) {
[0]=>
string(5) "Piano"
[1]=>
string(5) "Baixo"
}
[1]=>
array(2) {
[0]=>
string(7) "Violão"
[1]=>
string(13) "Caixas de Som"
}
[2]=>
array(1) {
[0]=>
string(7) "Sanfona"
}
}
DEMO