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