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<?php |
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/** |
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* Part of the InputSanitizer package. |
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* |
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* @package InputSanitizer |
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* @version 1.0.2 |
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* @author Arthur Lorent <[email protected]>, Daniel Lucas <[email protected]> |
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* @license MIT |
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* @copyright (c) 2006-2017, ACID-Solutions SARL |
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* @link https://acid.fr |
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*/ |
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namespace AcidSolutions\InputSanitizer; |
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class InputSanitizer |
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{ |
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/** |
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* Cleans given input and returns cleaned data. |
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* |
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* @param mixed $entry The data to clean |
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* @param mixed $default Value to return by default if the input data is falsy |
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* @param bool $jsonDecodeAssoc Should json_decode return an associative array instead of StdClass? |
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* |
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* @return mixed |
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*/ |
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public function sanitize($entry, $default = null, $jsonDecodeAssoc = false) |
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{ |
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// we remove useless spaces |
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if (is_string($entry)) { |
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$entry = trim($entry); |
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} |
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// we sanitize the value |
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switch (true) { |
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case $entry === '': |
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case $entry === 'null': |
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$return = null; |
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break; |
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case $entry === 'false': |
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$return = false; |
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break; |
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case $entry === 'true': |
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case $entry === 'on': |
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$return = true; |
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break; |
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case is_numeric($entry): |
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if (((int) $entry != $entry)) { |
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$return = doubleval($entry); |
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} else { |
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$return = intval($entry); |
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} |
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break; |
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case $this->isJson($entry): |
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$return = json_decode($entry, $jsonDecodeAssoc); |
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if (is_array($return)) { |
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$return = (array) $this->sanitizeAll($return); |
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} |
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break; |
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case is_array($entry): |
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$return = $this->sanitizeAll($entry); |
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break; |
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default: |
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$return = $entry; |
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break; |
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}; |
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// if the value is null or false, return the default value |
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if (isset($default) && !$return) { |
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return $default; |
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} |
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return $return; |
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} |
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/** |
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* Recursive method to sanitize deep array of data. |
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* |
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* @param array $entries Array of data to sanitize |
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* |
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* @return array |
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*/ |
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private function sanitizeAll(array $entries) |
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{ |
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$return = []; |
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// for each entry contained into the array |
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foreach ($entries as $key => $entry) { |
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// we sanitize it |
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if (is_array($entry)) { |
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$return[$key] = $this->sanitizeAll($entry); |
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} else { |
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$return[$key] = $this->sanitize($entry); |
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} |
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} |
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return $return; |
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} |
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/** |
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* Check if an item is JSON. |
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* |
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* @param $string Item to check |
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* |
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* @return bool True if the given item is JSON |
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*/ |
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private function isJson($string) |
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{ |
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if (!is_string($string)) { |
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return false; |
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} |
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json_decode($string); |
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return (json_last_error() == JSON_ERROR_NONE); |
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} |
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} |
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ACID-Solutions /
input-sanitizer
