The example in this article describes how PHP implements the method of receiving a binary stream and converting it into a picture. Share it with everyone for your reference, the details are as follows:

Here, php is implemented to receive the binary stream and convert it into an image. The image class imageUpload.php used is as follows:

<?php
/**
 * 圖片類
* @version 1.0
*
* PHP默認(rèn)只識(shí)別application/x-www.form-urlencoded標(biāo)準(zhǔn)的數(shù)據(jù)類型。
* 因此，對(duì)型如text/xml 或者 soap 或者 application/octet-stream 之類的內(nèi)容無(wú)法解析，如果用$_POST數(shù)組來(lái)接收就會(huì)失敗！
* 故保留原型，交給$GLOBALS[&#39;HTTP_RAW_POST_DATA&#39;] 來(lái)接收。
* 另外還有一項(xiàng) php://input 也可以實(shí)現(xiàn)此這個(gè)功能
* php://input 允許讀取 POST 的原始數(shù)據(jù)。和 $HTTP_RAW_POST_DATA 比起來(lái)，它給內(nèi)存帶來(lái)的壓力較小，并且不需要任何特殊的 php.ini 設(shè)置。php://input和 $HTTP_RAW_POST_DATA 不能用于 enctype="multipart/form-data"。
*/
class imageUpload {
  const ROOT_PATH = &#39;./&#39;;
  const FAIL_WRITE_DATA = &#39;Fail to write data&#39;;
  //沒(méi)有數(shù)據(jù)流
  const NO_STREAM_DATA = &#39;The post data is empty&#39;;
  //圖片類型不正確
  const NOT_CORRECT_TYPE = &#39;Not a correct image type&#39;;
  //不能創(chuàng)建文件
  const CAN_NOT_CREATE_FILE = &#39;Can not create file&#39;;
  //上傳圖片名稱
  public $image_name;
  //圖片保存名稱
  public $save_name;
  //圖片保存路徑
  public $save_dir;
  //目錄+圖片完整路徑
  public $save_fullpath;
  /**
   * 構(gòu)造函數(shù)
   * @param String $save_name 保存圖片名稱
   * @param String $save_dir 保存路徑名稱
   */
  public function __construct($save_name, $save_dir) {
    //set_error_handler ( $this->error_handler () );
    //設(shè)置保存圖片名稱，若未設(shè)置，則隨機(jī)產(chǎn)生一個(gè)唯一文件名
    $this->save_name = $save_name ? $save_name : md5 ( mt_rand (), uniqid () );
    //設(shè)置保存圖片路徑，若未設(shè)置，則使用年/月/日格式進(jìn)行目錄存儲(chǔ)
    $this->save_dir = $save_dir ? self::ROOT_PATH .$save_dir : self::ROOT_PATH .date ( &#39;Y/m/d&#39; );
    //創(chuàng)建文件夾
    @$this->create_dir ( $this->save_dir );
    //設(shè)置目錄+圖片完整路徑
    $this->save_fullpath = $this->save_dir . &#39;/&#39; . $this->save_name;
  }
  //兼容PHP4
  public function image($save_name) {
    $this->__construct ( $save_name );
  }
  public function stream2Image() {
    //二進(jìn)制數(shù)據(jù)流
    $data = file_get_contents ( &#39;php://input&#39; ) ? file_get_contents ( &#39;php://input&#39; ) : gzuncompress ( $GLOBALS [&#39;HTTP_RAW_POST_DATA&#39;] );
    //數(shù)據(jù)流不為空，則進(jìn)行保存操作
    if (! empty ( $data )) {
      //創(chuàng)建并寫入數(shù)據(jù)流，然后保存文件
      if (@$fp = fopen ( $this->save_fullpath, &#39;w+&#39; )) {
        fwrite ( $fp, $data );
        fclose ( $fp );
        $baseurl = "http://" . $_SERVER ["SERVER_NAME"] . ":" . $_SERVER ["SERVER_PORT"] . dirname ( $_SERVER ["SCRIPT_NAME"] ) . &#39;/&#39; . $this->save_name;
        if ( $this->getimageInfo ( $baseurl )) {
          echo $baseurl;
        } else {
          echo ( self::NOT_CORRECT_TYPE );
        }
      } else {
      }
    } else {
      //沒(méi)有接收到數(shù)據(jù)流
      echo ( self::NO_STREAM_DATA );
    }
  }
  /**
   * 創(chuàng)建文件夾
   * @param String $dirName 文件夾路徑名
   */
  public function create_dir($dirName, $recursive = 1,$mode=0777) {
    ! is_dir ( $dirName ) && mkdir ( $dirName,$mode,$recursive );
  }
  /**
   * 獲取圖片信息，返回圖片的寬、高、類型、大小、圖片mine類型
   * @param String $imageName 圖片名稱
   */
  public function getimageInfo($imageName = &#39;&#39;) {
    $imageInfo = getimagesize ( $imageName );
    if ($imageInfo !== false) {
      $imageType = strtolower ( substr ( image_type_to_extension ( $imageInfo [2] ), 1 ) );
      $imageSize = filesize ( $imageInfo );
      return $info = array (&#39;width&#39; => $imageInfo [0], &#39;height&#39; => $imageInfo [1], &#39;type&#39; => $imageType, &#39;size&#39; => $imageSize, &#39;mine&#39; => $imageInfo [&#39;mine&#39;] );
    } else {
      //不是合法的圖片
      return false;
    }
  }
  /*private function error_handler($a, $b) {
   echo $a, $b;
  }*/
}
?>

I hope that this article will be helpful to everyone's PHP Programming helps.

For more PHP implementation of base conversion (binary, octal, hexadecimal) and mutual conversion code related articles, please pay attention to the PHP Chinese website!