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<?php |
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
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/** |
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* This file is part of the Base64 Handler library. |
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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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* PHP Version 7 |
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* |
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* LICENSE: This source file is subject to the MIT license that is available |
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* through the world-wide-web at the following URI: |
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* http://opensource.org/licenses/mit-license.php |
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* |
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* @category Src |
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* @package Normeno\Base64Hanlder |
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* @author Nicolas Ormeno <[email protected]> |
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* @license http://opensource.org/licenses/mit-license.php MIT License |
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* @link https://github.com/normeno/base64_handler |
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*/ |
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namespace Normeno\Base64Handler; |
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/** |
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* Checker Class |
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* |
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* @category src |
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* @package Normeno\Base64Handler |
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* @author Nicolas Ormeno <[email protected]> |
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* @license http://opensource.org/licenses/mit-license.php MIT License |
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* @link https://github.com/normeno/base64_handler |
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*/ |
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class Checker |
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{ |
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/** |
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* Check if string is a base64 string |
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* |
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* @param string $str base64 string |
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* |
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* @return bool |
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*/ |
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public static function isBase64($str) { |
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try { |
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return ( base64_encode(base64_decode($str, true)) === $str) ? true : false; |
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} catch (\Exception $e) { |
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return false; |
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} |
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} |
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/** |
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* Check if base64 string is an image |
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* |
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* @see https://stackoverflow.com/a/12658754/2901396 |
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* @param string $str base64 string |
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* |
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* @return bool |
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*/ |
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public static function isBase64Image($str) |
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{ |
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$str = Utils::clearString($str); |
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$img = @imagecreatefromstring(base64_decode($str)); |
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if (!$img) { |
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return false; |
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} |
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imagepng($img, 'tmp.png'); |
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$info = getimagesize('tmp.png'); |
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unlink('tmp.png'); |
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if ($info[0] > 0 && $info[1] > 0 && $info['mime']) { |
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return true; |
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} |
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return false; |
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} |
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} |
normeno /
base64-handler
