我正在寻找一个能够使用点符号访问多维数组的类:
$config->get('bar.baz.foo');
代替:
$config['bar']['baz']['foo']
这是课程:
<?php
class DotNotation
{
/**
* @var array
*/
protected $values = array();
public function __construct(array $values)
{
$this->values = $values;
}
/**
* @param string $path
* @param string $default
* @return mixed
*/
public function get($path, $default = null)
{
$array = $this->values;
if (!empty($path)) {
$keys = explode('.', $path);
foreach ($keys as $key) {
if (isset($array[$key])) {
$array = $array[$key];
} else {
return $default;
}
}
}
return $array;
}
/**
* @param string $path
* @param mixed $value
*/
public function set($path, $value)
{
$link = & $this->values;
if (!empty($path)) {
$keys = explode('.', $path);
foreach ($keys as $key) {
if (!isset($link[$key])) {
$link[$key] = array();
}
if (!is_array($link[$key])) {
throw new \RuntimeException("Can not set value for `$key` in `$path` path because it is not array.");
}
$link = & $link[$key];
}
}
$link = $value;
}
/**
* @param $path
* @param array $values
*/
public function add($path, array $values)
{
$get = (array)$this->get($path);
$this->set($path, $this->arrayMergeRecursiveDistinct($get, $values));
}
/**
* @param mixed $parameters
*/
public function merge($parameters)
{
$this->add(null, (array)$parameters);
}
/**
* @param string $path
* @return bool
*/
public function have($path)
{
$keys = explode('.', $path);
$array = $this->values;
foreach ($keys as $key) {
if (isset($array[$key])) {
$array = $array[$key];
} else {
return false;
}
}
return true;
}
/**
* array_merge_recursive does indeed merge arrays, but it converts values with duplicate
* keys to arrays rather than overwriting the value in the first array with the duplicate
* value in the second array, as array_merge does. I.e., with array_merge_recursive,
* this happens (documented behavior):
*
* array_merge_recursive(array('key' => 'org value'), array('key' => 'new value'));
* => array('key' => array('org value', 'new value'));
*
* arrayMergeRecursiveDistinct does not change the datatypes of the values in the arrays.
* Matching keys' values in the second array overwrite those in the first array, as is the
* case with array_merge, i.e.:
*
* arrayMergeRecursiveDistinct(array('key' => 'org value'), array('key' => 'new value'));
* => array('key' => array('new value'));
*
* Parameters are passed by reference, though only for performance reasons. They're not
* altered by this function.
*
* If key is integer, it will be merged like array_merge do:
* arrayMergeRecursiveDistinct(array(0 => 'org value'), array(0 => 'new value'));
* => array(0 => 'org value', 1 => 'new value');
*
* @param array $array1
* @param array $array2
* @return array
* @author Daniel <daniel (at) danielsmedegaardbuus (dot) dk>
* @author Gabriel Sobrinho <gabriel (dot) sobrinho (at) gmail (dot) com>
* @author Anton Medvedev <anton (at) elfet (dot) ru>
*/
protected function arrayMergeRecursiveDistinct(array &$array1, array &$array2)
{
$merged = $array1;
foreach ($array2 as $key => &$value) {
if (is_array($value) && isset ($merged[$key]) && is_array($merged[$key])) {
if (is_int($key)) {
$merged[] = $this->arrayMergeRecursiveDistinct($merged[$key], $value);
} else {
$merged[$key] = $this->arrayMergeRecursiveDistinct($merged[$key], $value);
}
} else {
if (is_int($key)) {
$merged[] = $value;
} else {
$merged[$key] = $value;
}
}
}
return $merged;
}
}
我怎样才能提高这个类不使用explode
?