php Image Processing Function Acquisition Type and Extension Instance

This paper describes the method of obtaining type and extension of php image processing function. Share it for your reference.

The specific implementation code is as follows:

image_type=image_type_to_mime_type(imagetype_png);   // Get png Adj. mime Type  

echo $image_type;           // Output result  

// 

 

$file = '1.jpg'; 

$image = imagecreatefromjpeg($file); 

header('content-type: ' . image_type_to_mime_type(imagetype_wbmp)); 

$fp=fopen($file,r); 

fpassthru($fp); 

image2wbmp($image,"1.bmp"); // output the stream directly 

 

//image_type_to_extension. (php Tutorials  5). image_type_to_extension  -   Gets a file of image type   Suffix  ... warning.  There is no document for this function at present  

 

$file_ext=image_type_to_extension("1.jpg"); 

echo $file_ext; 

// 

 

$filename="1.jpg";         // Define an image file  

$size=getimagesize($filename);      // Gets the size of the image  

$fp=fopen($filename,"rb");        // Open a file  

if($size && $fp)          // If open successfully  

{ 

  header("content-type: {$size['mime']}");     // Output file header information  

  fpassthru($fp);         // Output file content  

  exit;           // Abort operation  

} 

else 

{ 

  echo " File failed to open, or the specified file is not an image file ";   // Output error message  

}

I hope this article is helpful to everyone's PHP programming.