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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 Converter  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Convert image to base64  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $file image's path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @see https://stackoverflow.com/a/13758760/2901396  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return bool|string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function imageToBase64($file)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $type = pathinfo($file, PATHINFO_EXTENSION);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $data = file_get_contents($file);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $base64 = 'data:image/' . $type . ';base64,' . base64_encode($data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $base64;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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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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                     * Convert base64 to image  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $base64    Base64 string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $dest      destination path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array|string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function base64ToImage(string $base64, string $dest = '')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if ($dest == '') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $dest = getcwd() . '/src/tmp';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $base64 = Utils::clearString($base64);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $resp = Utils::getExtFromBase64($base64);  | 
            
                            
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                            $filename = md5(time().uniqid()) . '.' . $resp['ext'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $base64 = Utils::clearString($base64);  | 
            
                            
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                            $resp['path'] = $dest . '/' . $filename;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            file_put_contents($resp['path'], base64_decode($base64));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            unlink($resp['path']);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $resp;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } catch (\Exception $e) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return "{$e->getMessage()}: ({$e->getCode()})"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Convert base64 to image  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $base64    Base64 string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $ext       File's extension  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $dest      destination path  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return array|string  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                        
            
                                    
            
            
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                    public static function base64ToFile(string $base64, string $ext = '', string $dest = '')  | 
            
            
                                                        
            
                                    
            
            
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                    { | 
            
            
                                                        
            
                                    
            
            
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                        try { | 
            
            
                                                        
            
                                    
            
            
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                            if ($dest == '') { | 
            
            
                                                        
            
                                    
            
            
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                                $dest = getcwd() . '/src/tmp';  | 
            
            
                                                        
            
                                    
            
            
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                            }  | 
            
            
                                                        
            
                                    
            
            
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                            $base64 = Utils::clearString($base64);  | 
            
            
                                                        
            
                                    
            
            
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                            $resp = Utils::getExtFromBase64($base64);  | 
            
                            
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                            $resp['ext'] = !empty($ext) ? $ext : $resp['ext'];  | 
            
            
                                                        
            
                                    
            
            
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                            $filename = md5(time().uniqid()) . '.' . $resp['ext'];  | 
            
            
                                                        
            
                                    
            
            
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                            $resp['path'] = $dest . '/' . $filename;  | 
            
            
                                                        
            
                                    
            
            
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                            file_put_contents($resp['path'], base64_decode($base64));  | 
            
            
                                                        
            
                                    
            
            
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                            unlink($resp['path']);  | 
            
            
                                                        
            
                                    
            
            
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                            return $resp;  | 
            
            
                                                        
            
                                    
            
            
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                        } catch (\Exception $e) { | 
            
            
                                                        
            
                                    
            
            
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                            return "{$e->getMessage()}: ({$e->getCode()})"; | 
            
            
                                                        
            
                                    
            
            
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                        }  | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                        
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.