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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                PHP對Base64的支持非常好,有內置的base64_encode與base64_decode負責圖片的Base64編碼與解碼。 編碼上,只要將圖片流讀取到,而后使用base64_encode進行進行編碼即可得到。 而圖片編碼成base64字符串后,編碼內會加入這些字符 data:image/png;base64,本來是用于base64進行識別的。但是如果直接放到php里用base64_decode函數解碼會導致最終保存的圖片文件格式損壞,而解決方法就是先去掉這一串字符: ``` $base64_string= explode(',', $base64_string); //截取data:image/png;base64, 這個逗號后的字符 $data= base64_decode($base64_string[1]);  //對截取后的字符使用base64_decode進行解碼 file_put_contents($url, $data); //寫入文件并保存 ``` ### **項目應用實例** ``` /** * 構造函數定義子目錄和獲取配置文件中定義的上傳路徑 * */ public function __construct() { $this->base_upload_url = $this->getAmazonImageUploadPath();//獲取配置文件中定義的路徑 $this->image_path = '/sku_images'; } /** * 批量上傳,返回上傳路徑 * @param $sku_id 子目錄 * @param $thumbs base64圖像文件 * @param $imageIsFile 是否是圖像文件 * @throws * */ public function batchUploadFile($sku_id,$thumbs,$imageIsFile = false) { $pathName = $this->image_path.'/'.$sku_id; $result = []; $images = json_decode($thumbs); if(!empty($images)){ foreach ($images as $img){ $file_name = 'sku'.'-'.time().rand(10000,99999); $path = yield $this->uploadFile($img->data,$pathName,$file_name,$imageIsFile); $result[] ="/publish/amazon/match?path=". $path; } } return $result; } ``` ``` /** * 上傳文件 * @param $baseData string * @param $pathName string * @param $fileName string * @return string */ public function uploadFile($baseData, $pathName,$fileName, $isFile = false) { if(!$baseData){ throw new ExceptionFail('未檢測到文件'); } $url = $this->base_upload_url . $pathName ; $this->mkdir($url); try { $fileName = strval($fileName).'.jpg'; if(!$isFile){ $start = strpos($baseData, ','); $content = substr($baseData, $start+1); $baseData = base64_decode(str_replace(" ", "+", $content));//base64解碼 file_put_contents($url.'/'.$fileName, $baseData); return $pathName.'/'.$fileName; }else{ return $baseData; } } catch (\Exception $e) { throw new ExceptionError($e->getMessage()); } } ``` ### **運行:** 參數說明:圖片上傳時,需要在前端轉成base64格式的圖片流。 ![](https://box.kancloud.cn/857775737f3a5b703ec8e2e930f6a319_1063x421.png) 這是本例中測試用的base64圖片流: ``` {"data":"data:image/jpeg;base64,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"} ```
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