- var_dump: documentation ( source)
- array_merge_recursive: documentation ( source)
- array_shift: documentation ( source)
- explode: documentation ( source)
- trim: documentation ( source)
- in_array: documentation ( source)
<?php
/**
* ArrayStacker
*/
class ArrayStacker {
/**
* Find double values in array and remove them
* @param array $array
*/
protected function _filterArrayDistict($array) {
$newArray = array();
foreach($array as $value) {
if(!in_array($value, $newArray)) {
$newArray[] = $value;
}
}
return $newArray;
}
/**
* Split the whole string into a big array
*
* @param string $string
* @return array
*/
protected function _splitString($string) {
$lines = explode("\n", $string);
$i = 0;
$array = array();
foreach($lines as $line) {
$values = explode(' / ', $line);
foreach($values as $v => $value) {
$values[$v] = trim($value); // make sure we got no whitespaces
}
$array[$i] = $values;
$i++;
}
return $array;
}
/**
* Build a stacked array
*
* @param array $array unstacked array
* @return stacked array
*/
protected function _stack($array) {
$stackedArray = array();
$key = array_shift($array);
$depth = count($array);
if($depth == 1) {
$stackedArray[][$key] = $array[0]; // that's a single value
} else {
$subArray = $this->_stack($array);
if($subArray != null) {
$stackedArray[][$key] = $subArray;
}
}
return $stackedArray;
}
/**
* Build stacked array from string
*
* @param string $string
* @return array stacked array
*/
public function stackArray($string) {
// Split the string to an array
$array = $this->_splitString($string);
// Filter out doubled values
$array = $this->_filterArrayDistict($array);
// Build stacked array
$stackedArray = array();
foreach($array as $row) {
$stackedArray = array_merge_recursive($stackedArray, $this->_stack($row));
}
return $stackedArray;
}
}
$string = "Football / Germany / 1.Liga
Football / Germany / 1.Liga
Football / Germany / 2.Liga
Football / Germany / 2.Liga
Football / Germany / 2.Liga
Football / England / 1.Liga
Football / England / 1.Liga
Football / England / 2.Liga
Football / England / 2.Liga
Football / England / 3.Liga
Hockey / Germany / 1.Liga
Hockey / Germany / 1.Liga
Hockey / Germany / 2.Liga
Fechten / Meisterschaft
Fechten / Meisterschaft
Fechten / Weltmeister";
$arrayStacker = new ArrayStacker();
$stackedArray = $arrayStacker->stackArray($string);
var_dump($stackedArray);
/*
* OUTPUT:
array(3) {
["Football"]=>
array(2) {
["Germany"]=>
array(2) {
[0]=>
string(6) "1.Liga"
[1]=>
string(6) "2.Liga"
}
["England"]=>
array(3) {
[0]=>
string(6) "1.Liga"
[1]=>
string(6) "2.Liga"
[2]=>
string(6) "3.Liga"
}
}
["Hockey"]=>
array(1) {
["Germany"]=>
array(2) {
[0]=>
string(6) "1.Liga"
[1]=>
string(6) "2.Liga"
}
}
["Fechten"]=>
array(2) {
[0]=>
string(13) "Meisterschaft"
[1]=>
string(11) "Weltmeister"
}
}
*/