<?php
namespace JLaso\TranslationsApiBundle\Tools;
use Symfony\Component\Yaml\Yaml;
class ArrayTools
{
const SORT_KEYS = true;
const DO_NOT_SORT_KEYS = false;
/**
* keyed associative array to hierarchical associative array
* example[subkey1.subkey2] to example[subkey1][subkey2]
* this is a more valuable tool to dump yaml files pretty
*
* @param mixed $data
* @param bool $sortKeys
*
* @return array
*/
public static function keyedAssocToHierarchical($data, $sortKeys = self::DO_NOT_SORT_KEYS)
{
if(self::SORT_KEYS == $sortKeys){
ksort($data);
}
$result = array();
foreach($data as $key=>$value){
if($value!==null){
$keys = explode('.',$key);
$node = $value;
for($i = count($keys); $i>0; $i--){
$k = $keys[$i-1];
$node = array($k => $node);
}
$result = array_merge_recursive($result, $node);
}
}
return $result;
}
/**
* This helper returns a pretty formatted yaml like
*
* key1:
* key2: value
* key3: value
*
* instead of
* ==========
* key1.key2: value
* key1.key3: value
*
* @param $data
*
* @return string
*/
public static function prettyYamlDump($data)
{
return Yaml::dump(self::keyedAssocToHierarchical($data, self::SORT_KEYS), 100);
}
/**
* associative array indexed to dimensional associative array of keys
* example[key1][key2][key3] => example[key1.key2.key3]
*
* @param mixed $data
*
* @return array
*/
public static function hierarchicalAssocToKeyed($data)
{
$h2k = function(&$dest, $orig, $currentKey) use(&$h2k){
if(is_array($orig) && (count($orig)>0)){
foreach($orig as $key=>$value){
if(is_array($value)){
$h2k($dest, $value, ($currentKey ? $currentKey . '.' : '') . $key);
}else{
$dest[($currentKey ? $currentKey . '.' : '') . $key] = $value;
}
}
}
};
$result = array();
$h2k($result, $data, '');
return $result;
}
/**
* parses a Yaml string and process the keys and returns as a associative indexed array
*
* key1:
* key2: value1
* key3: value2
*
* turns into { "key1.key2": value1, "key1.key3": value2 }
*
* @param string $yaml
*
* @return array
*/
public static function YamlToKeyedArray($yaml)
{
$content = Yaml::parse($yaml);
return self::hierarchicalAssocToKeyed($content);
}
}
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