无法重命名文件夹中的所有文件

Question

I've been trying to change the file extension of all the picture files in a folder using the following snippet:

$dh = opendir('JS2C'); 
$files = array(); 
while (($file = readdir($dh)) !== false) { 
    if($file !== '.' && $file !== '..') {
        $file = pathinfo($file);
        rename($file, $new . '.jpg');
    }
}

I get the following warning messages:

SCREAM: Error suppression ignored for
Warning: rename(ANAZODO.gif,ANAZODO.jpg): 
The system cannot find the file specified. (code: 2) in C:\wamp2\www\ckcportal\batch2.php on ...

The folder that contains the files is in the same folder with the PHP script.

Answer 1

You have to supply the full path, from the error you are receiving, it looks like you are just giving the file name.

rename('/path/to/old/file', '/path/to/new/file');

And why are you using $file = pathinfo($file); ? pathinfo creates an assoc. array from information of $file which should be giving you the full path. If you take this out, it should work.

Unless you need to following:

$info = pathinfo($file);
$path = $info['dirname']

$new_file = $path . '/' . 'newfile.ext';

rename($file, $new_file);

Answer 2

you are missing directory for rename

$d = 'JS2C/'
$dh = opendir($d); 
while (($file = readdir($dh)) !== false) { 
    if($file !== '.' && $file !== '..') {
        //$file_no_ext = substr($file, 0,strrpos($file,'.'));// before php 5.2 

        $path_parts = pathinfo($file); // php 5.2
        $file_no_ext =  $path_parts['filename'];  // php 5.2

       rename($d.$file, $d.$file_no_ext . '.jpg');
    }
}