(PHP 4, PHP 5)
copy — Copies file
$source
   , string $dest
   [, resource $context
  ] )
   Makes a copy of the file source to
   dest.
  
If you wish to move a file, use the rename() function.
source
     Path to the source file.
dest
     
       The destination path. If dest is a URL, the
       copy operation may fail if the wrapper does not support overwriting of
       existing files.
      
If the destination file already exists, it will be overwritten.
context
     A valid context resource created with stream_context_create().
   Returns TRUE on success or FALSE on failure.
  
| Version | Description | 
|---|---|
| 5.3.0 | Added context support. | 
| 4.3.0 | Both sourceanddestmay now be URLs if the "fopen wrappers" have been enabled.
        See  fopen() for more details. | 
Example #1 copy() example
<?php
$file = 'example.txt';
$newfile = 'example.txt.bak';
if (!copy($file, $newfile)) {
    echo "failed to copy $file...\n";
}
?>