<?php
//Our recursive function.
function recursive($str, $count, $start, &$duplicate){
//Print out the number.
if($count > $start) {
if(!isset($duplicate[$str[$start]])) {
$duplicate[$str[$start]] = 1;
return recursive($str, $count, $start+1, $duplicate);
} else {
//array_push($duplicate, array($start=>$str[$start]));
$duplicate[$str[$start]] +=1;
return recursive($str, $count, $start+1, $duplicate);
}
}
}
//Set our start number to 1.
$str = 'buffet';
$count = strlen($str);
$start = 0;
$duplicate = array();
//Call our recursive function.
recursive($str, $count, $start, $duplicate);
print_r($duplicate);
- Output for 7.1.25 - 7.1.30, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- Array
(
[b] => 1
[u] => 1
[f] => 2
[e] => 1
[t] => 1
)
preferences:
172.6 ms | 403 KiB | 168 Q