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<?php |
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/** |
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* This file is part of library-template |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @author Nicolò Martini <[email protected]> |
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*/ |
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namespace StringTemplate; |
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class NestedKeyArray implements \ArrayAccess, \IteratorAggregate |
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{ |
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private $array; |
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private $keySeparator; |
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/** |
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* @param array $array |
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* @param string $keySeparator |
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*/ |
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public function __construct(array &$array, $keySeparator = '.') |
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{ |
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$this->array = $array; |
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$this->keySeparator = $keySeparator; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getIterator() |
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{ |
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return new NestedKeyIterator(new RecursiveArrayOnlyIterator($this->array)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetExists($offset) |
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{ |
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$keys = explode($this->keySeparator, $offset); |
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$ary = &$this->array; |
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foreach ($keys as $key) { |
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if (!isset($ary[$key])) |
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return false; |
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$ary = &$ary[$key]; |
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} |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetGet($offset) |
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{ |
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$keys = explode($this->keySeparator, $offset); |
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$result = &$this->array; |
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foreach ($keys as $key) { |
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$result = &$result[$key]; |
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} |
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return $result; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->setNestedOffset($this->array, explode($this->keySeparator, $offset), $value); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetUnset($offset) |
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{ |
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$this->unsetNestedOffset($this->array, explode($this->keySeparator, $offset)); |
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} |
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/** |
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* @return array |
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*/ |
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public function toArray() |
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{ |
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return $this->array; |
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} |
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/** |
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* @param array $target |
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* @param array $offsets |
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* @param $value |
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* @return $this |
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*/ |
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private function setNestedOffset(array &$target, array $offsets, $value) |
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{ |
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$currKey = array_shift($offsets); |
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if (!$offsets) { |
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$target[$currKey] = $value; |
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} else { |
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if (!isset($target[$currKey])) |
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$target[$currKey] = array(); |
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$this->setNestedOffset($target[$currKey], $offsets, $value); |
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} |
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return $this; |
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} |
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/** |
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* @param array $target |
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* @param array $offsets |
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* @return $this |
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*/ |
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private function unsetNestedOffset(array &$target, array $offsets) |
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{ |
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$currKey = array_shift($offsets); |
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if (!$offsets) { |
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unset($target[$currKey]); |
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} elseif (isset($target[$currKey])) { |
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$this->unsetNestedOffset($target[$currKey], $offsets); |
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} |
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return $this; |
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} |
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} |
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nicmart /
StringTemplate
Loading history...
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.