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<?php |
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namespace ArrayHelpers; |
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class Arr |
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{ |
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/** |
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* Get an item from an array. |
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* Supports dot notation: |
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* e.g `Arr::get($array, 'section.subsection.item')` |
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* |
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* @param array $array |
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* @param string $key |
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* @param mixed|null $default |
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* @return mixed|null |
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*/ |
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public static function get(array $array, $key, $default = null) |
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{ |
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if (array_key_exists($key, $array)) { |
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1 |
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return $array[$key]; |
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} |
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if (strpos($key, '.') === false) { |
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return $default; |
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} |
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2 |
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foreach (explode('.', $key) as $segment) { |
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if (is_array($array) && array_key_exists($segment, $array)) { |
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$array = $array[$segment]; |
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} else { |
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return $default; |
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} |
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} |
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return $array; |
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} |
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/** |
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* Checks if an item is available in an array. |
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* Supports dot notation: |
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* e.g `Arr::has($array, 'section.subsection.item')` |
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* |
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* @param array $array |
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* @param string $key |
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* @return bool |
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*/ |
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public static function has(array $array, $key) |
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{ |
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if (array_key_exists($key, $array)) { |
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1 |
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return true; |
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} |
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if (strpos($key, '.') === false) { |
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return false; |
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} |
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2 |
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foreach (explode('.', $key) as $segment) { |
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if (is_array($array) && array_key_exists($segment, $array)) { |
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$array = $array[$segment]; |
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} else { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Set an array item to a given value using "dot" notation. |
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* |
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* @param array $array |
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* @param string $key |
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* @param mixed $value |
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* @return array |
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*/ |
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public static function set(&$array, $key, $value) |
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{ |
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$keys = explode('.', $key); |
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4 |
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while (count($keys) > 1) { |
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$key = array_shift($keys); |
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// If the key doesn't exist at this depth, we will just create an empty array |
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// to hold the next value, allowing us to create the arrays to hold final |
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// values at the correct depth. Then we'll keep digging into the array. |
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if (! isset($array[$key]) || ! is_array($array[$key])) { |
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$array[$key] = []; |
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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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return $array; |
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} |
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} |
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jdrieghe /
array-helpers
