How to convert received binary data stream into image in php-PHP Problem-php.cn

How php receives the binary data stream and converts it into an image: first keep the prototype and use [$GLOBALS['HTTP_RAW_POST_DATA']] to accept it; then use [php://input] to read the original data of POST. .

How to convert received binary data stream into image in php

How php receives the binary data stream and converts it into an image:

By default, PHP only recognizesapplication/ x-www.form-urlencodedStandard data type.

Therefore, content such astext/xmlorsoaporapplication/octet-streamcannot be parsed. If you use$_POSTThe array will fail to receive!

Therefore, the prototype is retained and handed over to$GLOBALS['HTTP_RAW_POST_DATA']to receive it.

There is another php://input that can also implement this function

php://inputAllows reading the original data of POST. It puts less pressure on memory than$HTTP_RAW_POST_DATAand does not require any special php.ini settings.php://inputand$HTTP_RAW_POST_DATAcannot be used withenctype="multipart/form-data".

The specific code is:

error_handler () ); //设置保存图片名称，若未设置，则随机产生一个唯一文件名 $this->save_name = $save_name ? $save_name : md5 ( mt_rand (), uniqid () ); //设置保存图片路径，若未设置，则使用年/月/日格式进行目录存储 $this->save_dir = $save_dir ? self::ROOT_PATH .$save_dir : self::ROOT_PATH .date ( 'Y/m/d' ); //创建文件夹 @$this->create_dir ( $this->save_dir ); //设置目录+图片完整路径 $this->save_fullpath = $this->save_dir . '/' . $this->save_name; } //兼容PHP4 public function image($save_name) { $this->__construct ( $save_name ); } public function stream2Image() { //二进制数据流 $data = file_get_contents ( 'php://input' ) ? file_get_contents ( 'php://input' ) : gzuncompress ( $GLOBALS ['HTTP_RAW_POST_DATA'] ); //数据流不为空，则进行保存操作 if (! emptyempty ( $data )) { //创建并写入数据流，然后保存文件 if (@$fp = fopen ( $this->save_fullpath, 'w+' )) { fwrite ( $fp, $data ); fclose ( $fp ); $baseurl = "http://" . $_SERVER ["SERVER_NAME"] . ":" . $_SERVER ["SERVER_PORT"] . dirname ( $_SERVER ["SCRIPT_NAME"] ) . '/' . $this->save_name; if ( $this->getimageInfo ( $baseurl )) { echo $baseurl; } else { echo ( self::NOT_CORRECT_TYPE ); } } else { } } else { //没有接收到数据流 echo ( self::NO_STREAM_DATA ); } } /** * 创建文件夹 * @param String $dirName 文件夹路径名 */ public function create_dir($dirName, $recursive = 1,$mode=0777) { ! is_dir ( $dirName ) && mkdir ( $dirName,$mode,$recursive ); } /** * 获取图片信息，返回图片的宽、高、类型、大小、图片mine类型 * @param String $imageName 图片名称 */ public function getimageInfo($imageName = '') { $imageInfo = getimagesize ( $imageName ); if ($imageInfo !== false) { $imageType = strtolower ( substr ( image_type_to_extension ( $imageInfo [2] ), 1 ) ); $imageSize = filesize ( $imageInfo ); return $info = array ('width' => $imageInfo [0], 'height' => $imageInfo [1], 'type' => $imageType, 'size' => $imageSize, 'mine' => $imageInfo ['mine'] ); } else { //不是合法的图片 return false; } } /*private function error_handler($a, $b) { echo $a, $b; }*/ }

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