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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the php-utilities package. |
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* |
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* (c) Marc Aschmann <[email protected]> |
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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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namespace Asm\Data; |
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use Asm\Exception\InvalidParameterException; |
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use Asm\Exception\InvalidParameterSetException; |
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/** |
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* DataTrait for easier inclusion in other objects without direct inheritance |
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* |
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* @package Asm\Data |
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* @author Marc Aschmann <[email protected]> |
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*/ |
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trait DataTrait |
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{ |
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/** |
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* Internal data storage. |
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* |
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* @var array |
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*/ |
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private $data = []; |
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/** |
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* Clears the data(!) content of the object. |
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* |
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* @return $this |
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*/ |
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public function clear() |
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{ |
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$this->data = []; |
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return $this; |
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} |
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/** |
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* Generic set method for multidimensional storage. |
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* |
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* $this->set( $key1, $key2, $key3, ..., $val ) |
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* |
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* @throws InvalidParameterSetException |
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* @return $this |
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*/ |
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public function set() |
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{ |
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$args = func_get_args(); |
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$replace = null; |
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if (1 < count($args)) { |
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// get last array element == value to set! |
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$val = array_pop($args); |
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// iterate arguments reversed to build replacement array |
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foreach (array_reverse($args) as $key) { |
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if (null === $replace) { |
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$replace = [$key => $val]; |
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} else { |
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$replace = [$key => $replace]; |
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} |
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} |
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// add our data to storage |
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$this->data = array_replace_recursive($this->data, $replace); |
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} else { |
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throw new InvalidParameterSetException( |
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"Data::set() - You just provided one param and need at least another param." |
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); |
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} |
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return $this; |
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} |
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/** |
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* Set list of key/value pairs via one dimensional array. |
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* Careful: An empty array will just overwrite your internal storage. |
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* |
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* @param array $param |
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* @return $this |
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*/ |
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public function setByArray(array $param) |
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{ |
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if (!empty($param)) { |
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// reset array to explicitly start at beginning |
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reset($param); |
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foreach ($param as $key => $value) { |
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$this->set($key, $value); |
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} |
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} else { // will overwrite content with an empty array |
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$this->data = $param; |
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} |
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return $this; |
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} |
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/** |
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* Adds given object's properties to self. |
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* |
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* @param object $param |
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* @return $this |
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* @throws InvalidParameterException |
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*/ |
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public function setByObject($param) |
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{ |
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// check for DataContainer instances - because otherwise you can't easily access virtual properties |
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if (is_object($param)) { |
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if (is_a($param, DataInterface::class, true)) { |
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foreach ($param->toArray() as $key => $value) { |
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$this->set($key, $value); |
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} |
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} else { |
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// handle as "normal" object |
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foreach ($param as $property => $value) { |
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$this->set($property, $value); |
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} |
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} |
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} else { |
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throw new InvalidParameterException( |
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"Data::setByObject() - param is a {gettype($param)},no object!" |
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); |
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} |
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return $this; |
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} |
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/** |
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* Fill datastore from json string. |
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* |
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* @param string $json |
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* @return $this |
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*/ |
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public function setByJson(string $json) |
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{ |
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$this->setByArray( |
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json_decode($json, true) |
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); |
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return $this; |
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} |
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/** |
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* Return stored data array. |
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* |
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* @return array |
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*/ |
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public function toArray() : array |
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{ |
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return $this->data; |
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} |
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/** |
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* Convert internal data to json. |
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* |
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* @return string |
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*/ |
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public function toJson() : string |
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{ |
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return json_encode($this->data); |
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} |
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/** |
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* Multidimensional getter. |
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* |
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* Find a key structure in a multidimensional array and return the value |
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* params are stackable -> get( $k1, $k2, $k3, ... ). |
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* |
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* @return bool|mixed |
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*/ |
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public function get() |
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{ |
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return self::searchArray( |
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func_get_args(), |
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$this->data |
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); |
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} |
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/** |
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* Return all keys of internal array's first level. |
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* |
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* @return array keylist |
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*/ |
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public function getKeys() : array |
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{ |
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return array_keys($this->data); |
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} |
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/** |
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* Remove key from container. |
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* |
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* @param string $key |
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* @return $this |
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*/ |
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public function remove(string $key) |
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{ |
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if (array_key_exists($key, $this->data)) { |
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unset($this->data[$key]); |
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} |
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return $this; |
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} |
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/** |
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* Return count of all firstlevel elements. |
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* |
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* @return int |
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*/ |
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public function count() : int |
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{ |
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return count($this->data); |
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} |
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/** |
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* Find a key in an array. |
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* example self::findInArray(array(), key1, key2, key3, ..., default_return) |
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* |
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* @return array|bool|mixed |
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*/ |
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public static function findInArray() |
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{ |
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$args = func_get_args(); |
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$data = array_shift($args); |
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return self::searchArray( |
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$args, |
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$data |
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); |
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} |
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/** |
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* Search an array for keys (args) and provide a default value if |
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* last arg is some kind of empty or not numeric. |
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* |
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* @param array $args |
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* @param array $data |
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* @param bool $default |
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* @return array|mixed |
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*/ |
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private static function searchArray(array $args, array $data, $default = false) |
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{ |
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// check for default return value |
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if (1 < count($args)) { |
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$lastElm = array_pop($args); |
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if (empty($lastElm) && !is_numeric($lastElm)) { |
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$default = $lastElm; |
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} else { |
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// push the last element back into array |
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array_push($args, $lastElm); |
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} |
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} |
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foreach ($args as $key) { |
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if ((is_array($data)) && (array_key_exists($key, $data))) { |
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$data = $data[$key]; |
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} else { |
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$data = $default; |
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break; |
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} |
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} |
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return $data; |
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} |
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} |
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