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<?php |
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/** |
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* Linna Filter |
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* |
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* @author Sebastian Rapetti <[email protected]> |
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* @copyright (c) 2018, Sebastian Rapetti |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types=1); |
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namespace Linna\Filter\Rules; |
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/** |
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* Return html entities. |
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*/ |
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class Escape implements RuleSanitizeInterface |
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{ |
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/** |
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* @var array Rule properties |
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*/ |
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public static $config = [ |
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'full_class' => __CLASS__, |
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'alias' => ['escape', 'escp', 'es'], |
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'args_count' => 0, |
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'args_type' => [] |
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]; |
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/** |
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* @var array Forbidden special chars in interger format. |
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*/ |
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private $special = [ |
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33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, |
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58, 59, 60, 61, 62, 63, 64, |
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91, 92, 93, 94, 95, 96, |
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123, 124, 125, 126 |
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]; |
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/** |
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* @var string Error message |
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*/ |
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private $message = ''; |
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/** |
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* Sanitize. |
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* |
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* @param mixed $value |
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*/ |
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public function sanitize(&$value): void |
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{ |
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$value = $this->htmlEscape($value); |
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} |
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/** |
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* Convert char to html entities. |
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* |
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* @param string $string |
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* |
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* @return string |
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*/ |
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private function htmlEscape(string $string): string |
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{ |
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$chars = \preg_split('//u', $string, \strlen($string), PREG_SPLIT_NO_EMPTY); |
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$escaped = ''; |
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if ($chars === false) { |
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return $escaped; |
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} |
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foreach ($chars as $char) { |
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$ord = \ord($char); |
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if (\in_array($ord, $this->special)) { |
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$escaped .= "&#{$ord};"; |
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continue; |
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} |
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$escaped .= $char; |
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} |
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return $escaped; |
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} |
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/** |
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* Return error message. |
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* |
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* @return string Error message |
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*/ |
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1 |
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public function getMessage(): string |
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{ |
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return $this->message; |
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} |
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} |
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linna /
filter
