Example of php saving binary raw data as image

Regarding the method of saving binary raw data as image files in PHP, receive the binary raw data posted, select a generation path and the name of the image, and then write it, friends who need it can refer to it.

Example, php saves binary raw data into image files.

//生成图片 
$imgDir = 'uploadImg/'; 
$filename="nissangcj".$mobile.".jpg"; ///要生成的图片名字 
  
$xmlstr = $GLOBALS[HTTP_RAW_POST_DATA]; 
if(empty($xmlstr)) { 
  $xmlstr = file_get_contents('php://input'); 
} 
   
$jpg = $xmlstr; //得到post过来的二进制原始数据 
if(empty($jpg)) 
{ 
  echo 'nostream'; 
  exit(); 
} // bbs.it-home.org
  
$file = fopen("./".$imgDir.$filename,"w"); //打开文件准备写入 
fwrite($file,$jpg);//写入 
fclose($file);//关闭 
  
$filePath = './'.$imgDir.$filename; 
  
//图片是否存在 
if(!file_exists($filePath)) 
{ 
  echo 'createFail'; 
  exit(); 
}