MIF_E31222691/laravel/arr.php

80 lines
1.8 KiB
PHP

<?php namespace Laravel;
class Arr {
/**
* Get an item from an array.
*
* If the specified key is null, the entire array will be returned. The array may
* also be accessed using JavaScript "dot" style notation. Retrieving items nested
* in multiple arrays is supported.
*
* <code>
* // Get the "name" item from the array
* $name = Arr::get(array('name' => 'Fred'), 'name');
*
* // Get the "age" item from the array, or return 25 if it doesn't exist
* $name = Arr::get(array('name' => 'Fred'), 'age', 25);
* </code>
*
* @param array $array
* @param string $key
* @param mixed $default
* @return mixed
*/
public static function get($array, $key, $default = null)
{
if (is_null($key)) return $array;
foreach (explode('.', $key) as $segment)
{
if ( ! is_array($array) or ! array_key_exists($segment, $array))
{
return ($default instanceof \Closure) ? call_user_func($default) : $default;
}
$array = $array[$segment];
}
return $array;
}
/**
* Set an array item to a given value.
*
* This method is primarly helpful for setting the value in an array with
* a variable depth, such as configuration arrays. Like the Arr::get
* method, JavaScript "dot" syntax is supported.
*
* <code>
* // Set an array's "name" item to "Fred"
* Arr::set($array, 'name', 'Fred');
* </code>
*
* @param array $array
* @param string $key
* @param mixed $value
* @return void
*/
public static function set(&$array, $key, $value)
{
if (is_null($key)) return $array = $value;
$keys = explode('.', $key);
while (count($keys) > 1)
{
$key = array_shift($keys);
if ( ! isset($array[$key]) or ! is_array($array[$key]))
{
$array[$key] = array();
}
$array =& $array[$key];
}
$array[array_shift($keys)] = $value;
}
}