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<?php |
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/** |
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* Copyright (c) 2016-present Ganbaro Digital Ltd |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* * Neither the names of the copyright holders nor the names of his |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* @category Libraries |
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* @package MissingBits/ListTraversals |
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* @author Stuart Herbert <[email protected]> |
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* @copyright 2016-present Ganbaro Digital Ltd www.ganbarodigital.com |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://ganbarodigital.github.io/php-the-missing-bits |
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*/ |
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namespace GanbaroDigital\MissingBits\ListTraversals; |
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use Traversable; |
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use InvalidArgumentException; |
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/** |
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* traverse a list held in an array |
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*/ |
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class TraverseArray |
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{ |
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/** |
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* traverse a list held in an array |
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* |
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* @param array|Traversable $list |
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* the list to walk |
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* @param string $listName |
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* what is the name of $list in the calling code? |
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* @param callable $callable |
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* what are we calling |
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* @return void |
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*/ |
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public static function using($list, $listName, callable $callable) |
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{ |
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// robustness! |
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if (!is_array($list) && !$list instanceof Traversable) { |
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throw new InvalidArgumentException($listName . ' is not an array'); |
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} |
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// if we get here, then we're okay to iterate over the list |
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foreach ($list as $key => $data) { |
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// make sure we quote the key correctly |
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$name = $listName . '[' . quote_index($key) . ']'; |
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$callable($data, $key, $name); |
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} |
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} |
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} |
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ganbarodigital /
php-the-missing-bits
