将任何base64文件转换为文件并移动到php / Symfony 4中的目标路径

预先感谢我正在创建 APIsymfony 4只是上传base64 image或通过任何文件POSTMAN我必须将文件移动到目标目录。我在控制器中编写了以下代码。通过控制器我试图将文件移动到目录，但是

我收到的错误如下：

未捕获的警告：file_put_contents（images/5c78de505abdd.svg）：无法打开流：没有这样的文件或目录{“例外”：“[对象]（ErrorException（代码：0）：警告：file_put_contents（images/5c78de505abdd.svg）：无法打开流：/home/ragiththomas/Sites/asco-forum/src/Modules/Forum/ForumController.php:1107)"} [] 没有此类文件或目录

POSTMAN 请求 svg 文件：

{"postFile":"data:image/svg+xml;base64,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"}

控制器文件：

/**
* @route("/uploadForumFiles", name="upload_forum_files", methods="POST")
*
* @access public
*
* @return JsonResponse
*/
public function uploadForumFiles(Request $request, PostsInterceptor $apiInterceptor, ContainerInterface $container): JsonResponse {
try {
$fileContent = $requestDtoObj->postFile;
$target_dir = 'images/'; // add the specific path to save the file
$decoded_file = base64_decode($fileContent); // decode the file
$mime_type = finfo_buffer(finfo_open(), $decoded_file, FILEINFO_MIME_TYPE); // extract mime type
$extension = $this->mime2ext($mime_type); // extract extension from mime type
$file = uniqid() .'.'. $extension; // rename file as a unique name
$file_dir = $target_dir. uniqid().'.'.$extension;
file_put_contents($target_dir, $file);
echo $file_dir; die;
} catch (Exception $ex) {

        $this->logger->writeLog("ERROR", "Exception while uploading a file " . $ex->getMessage() . 'at line - ' . $ex->getLine() . ' in file' . $ex->getFile());
        return $this->responseHandler->getFailedResponse(array($ex->getMessage()), $apiInterceptor);
    }
}




public function mime2ext($mime){
$all_mimes = '{"png":["image/png","image/x-png"],"bmp":["image/bmp","image/x-bmp",
"image/x-bitmap","image/x-xbitmap","image/x-win-bitmap","image/x-windows-bmp",
"image/ms-bmp","image/x-ms-bmp","application/bmp","application/x-bmp",
"application/x-win-bitmap"],"gif":["image/gif"],"jpeg":["image/jpeg",
"image/pjpeg"],"xspf":["application/xspf+xml"],"vlc":["application/videolan"],
"wmv":["video/x-ms-wmv","video/x-ms-asf"],"au":["audio/x-au"],
"ac3":["audio/ac3"],"flac":["audio/x-flac"],"ogg":["audio/ogg",
"video/ogg","application/ogg"],"kmz":["application/vnd.google-earth.kmz"],
"kml":["application/vnd.google-earth.kml+xml"],"rtx":["text/richtext"],
"rtf":["text/rtf"],"jar":["application/java-archive","application/x-java-application",
"application/x-jar"],"zip":["application/x-zip","application/zip",
"application/x-zip-compressed","application/s-compressed","multipart/x-zip"],
"7zip":["application/x-compressed"],"xml":["application/xml","text/xml"],
"svg":["image/svg+xml","application/octet-stream"],"3g2":["video/3gpp2"],"3gp":["video/3gp","video/3gpp"],
"mp4":["video/mp4"],"m4a":["audio/x-m4a"],"f4v":["video/x-f4v"],"flv":["video/x-flv"],
"webm":["video/webm"],"aac":["audio/x-acc"],"m4u":["application/vnd.mpegurl"],
"pdf":["application/pdf"],
"pptx":["application/vnd.openxmlformats-officedocument.presentationml.presentation"],
"ppt":["application/powerpoint","application/vnd.ms-powerpoint","application/vnd.ms-office",
"application/msword"],"docx":["application/vnd.openxmlformats-officedocument.wordprocessingml.document"],
"xlsx":["application/vnd.openxmlformats-officedocument.spreadsheetml.sheet","application/vnd.ms-excel"],
"xl":["application/excel"],"xls":["application/msexcel","application/x-msexcel","application/x-ms-excel",
"application/x-excel","application/x-dos_ms_excel","application/xls","application/x-xls"],
"xsl":["text/xsl"],"mpeg":["video/mpeg"],"mov":["video/quicktime"],"avi":["video/x-msvideo",
"video/msvideo","video/avi","application/x-troff-msvideo"],"movie":["video/x-sgi-movie"],
"log":["text/x-log"],"txt":["text/plain"],"css":["text/css"],"html":["text/html"],
"wav":["audio/x-wav","audio/wave","audio/wav"],"xhtml":["application/xhtml+xml"],
"tar":["application/x-tar"],"tgz":["application/x-gzip-compressed"],"psd":["application/x-photoshop",
"image/vnd.adobe.photoshop"],"exe":["application/x-msdownload"],"js":["application/x-javascript"],
"mp3":["audio/mpeg","audio/mpg","audio/mpeg3","audio/mp3"],"rar":["application/x-rar","application/rar",
"application/x-rar-compressed"],"gzip":["application/x-gzip"],"hqx":["application/mac-binhex40",
"application/mac-binhex","application/x-binhex40","application/x-mac-binhex40"],
"cpt":["application/mac-compactpro"],"bin":["application/macbinary","application/mac-binary",
"application/x-binary","application/x-macbinary"],"oda":["application/oda"],
"ai":["application/postscript"],"smil":["application/smil"],"mif":["application/vnd.mif"],
"wbxml":["application/wbxml"],"wmlc":["application/wmlc"],"dcr":["application/x-director"],
"dvi":["application/x-dvi"],"gtar":["application/x-gtar"],"php":["application/x-httpd-php",
"application/php","application/x-php","text/php","text/x-php","application/x-httpd-php-source"],
"swf":["application/x-shockwave-flash"],"sit":["application/x-stuffit"],"z":["application/x-compress"],
"mid":["audio/midi"],"aif":["audio/x-aiff","audio/aiff"],"ram":["audio/x-pn-realaudio"],
"rpm":["audio/x-pn-realaudio-plugin"],"ra":["audio/x-realaudio"],"rv":["video/vnd.rn-realvideo"],
"jp2":["image/jp2","video/mj2","image/jpx","image/jpm"],"tiff":["image/tiff"],
"eml":["message/rfc822"],"pem":["application/x-x509-user-cert","application/x-pem-file"],
"p10":["application/x-pkcs10","application/pkcs10"],"p12":["application/x-pkcs12"],
"p7a":["application/x-pkcs7-signature"],"p7c":["application/pkcs7-mime","application/x-pkcs7-mime"],"p7r":["application/x-pkcs7-certreqresp"],"p7s":["application/pkcs7-signature"],"crt":["application/x-x509-ca-cert","application/pkix-cert"],"crl":["application/pkix-crl","application/pkcs-crl"],"pgp":["application/pgp"],"gpg":["application/gpg-keys"],"rsa":["application/x-pkcs7"],"ics":["text/calendar"],"zsh":["text/x-scriptzsh"],"cdr":["application/cdr","application/coreldraw","application/x-cdr","application/x-coreldraw","image/cdr","image/x-cdr","zz-application/zz-winassoc-cdr"],"wma":["audio/x-ms-wma"],"vcf":["text/x-vcard"],"srt":["text/srt"],"vtt":["text/vtt"],"ico":["image/x-icon","image/x-ico","image/vnd.microsoft.icon"],"csv":["text/x-comma-separated-values","text/comma-separated-values","application/vnd.msexcel"],"json":["application/json","text/json"]}';

$all_mimes = json_decode($all_mimes,true);
foreach ($all_mimes as $key => $value) {
    if(array_search($mime,$value) !== false) return $key;
}
return false;

}

file_put_contents如果文件不存在，则创建该文件，但如果尝试将该文件放入不存在的目录中，则会失败。所以你应该尝试以下方法：

• 检查是否images目录存在
• 检查目录的写权限
• 尝试使用绝对路径，所以在你的情况下可能$target_dir = '/home/ragiththomas/Sites/asco-forum/images/';