How to Use PHP code to implement this Java code.

{Code...} is trying to use PHP to write verification code identification. Refer to a Java code. However, I don't know how to use PHP to write this code. The general meaning is to open the image in the directory, and then talk about the image as the map key, the file name as the value. Then I wrote the following code, but I don't know what to do later...

public static Map
  
    loadTrainData() throws Exception {        Map
   
     map = new HashMap
    
     ();        File dir = new File("train");        File[] files = dir.listFiles();        for (File file : files) {            map.put(ImageIO.read(file), file.getName().charAt(0) + "");        }        return map;    }
    
   
  

When trying to use PHP to write a verification code for recognition, refer to a Java code. However, I don't know how to use PHP to write this code.

The general meaning is to open the image in the directory, and then talk about the image as the map key, the file name as the value.

Then I wrote the following code, but I don't know what to do later.

Public function loadTrainData () {$ data = array (); $ path = "train/train1/"; $ handler = opendir ($ path ); while ($ filename = readdir ($ handler ))! = False) {if ($ filename! = "." & $ Filename! = ".. ") {$ Files [] = file_get_contents ($ path. $ filename) ;}} closedir ($ handler); # code how to write it here, or write the function return $ data in a better way ;}

Reply content:

public static Map
  
    loadTrainData() throws Exception {        Map
   
     map = new HashMap
    
     ();        File dir = new File("train");        File[] files = dir.listFiles();        for (File file : files) {            map.put(ImageIO.read(file), file.getName().charAt(0) + "");        }        return map;    }
    
   
  

When trying to use PHP to write a verification code for recognition, refer to a Java code. However, I don't know how to use PHP to write this code.

The general meaning is to open the image in the directory, and then talk about the image as the map key, the file name as the value.

Then I wrote the following code, but I don't know what to do later.

Public function loadTrainData () {$ data = array (); $ path = "train/train1/"; $ handler = opendir ($ path ); while ($ filename = readdir ($ handler ))! = False) {if ($ filename! = "." & $ Filename! = ".. ") {$ Files [] = file_get_contents ($ path. $ filename) ;}} closedir ($ handler); # code how to write it here, or write the function return $ data in a better way ;}

YourtrainIs the file name under the directory like this?A B C D ... 0 1 2 3
JavaThe Code Section is to traverse the directory and then createMap.

Your PHP code should look like this:

$files[$filename] = file_get_contents($path.$filename);

Resolved.

public function loadTrainData()    {        $path = "train/tran1/";        $handler = opendir($path);          while (($filename = readdir($handler)) !== false) {              if ($filename != "." && $filename != "..") {                  $sampleMap[substr($filename, 0, 1)] = imagecreatefromjpeg($path.$filename);           }          }        closedir($handler);         return $sampleMap;    }