[SOLVED] Auto increment if file exists.

[gijew]

I've been working several hours on trying to get this to work and although I'm gaining ground, I'm not really getting anywhere.

 

The idea is user uploads file ->

  system checks if file exists in the target folder ->

  |->exists

    - check if there are any files already incremented (ie: file (1).txt, file (2).txt, etc).

    - extract the numeric content value from the string

    - add a new value

    - upload file with new id

  |->does not exist

    - upload file

 

So here's what I have after programming all day. My regex sucks but I'll try to walk through why I was doing what I was doing. After all this work today I'm thinking I'm taking a bad approach. Can anyone lend a hand please?

 

<?php
// rip through the directory to do the file check
If ($DIR_HANDLE = opendir($FILE_DIRECTORY)) {
  While (false !== ($FILED = readdir($DIR_HANDLE))) {
    // init
    $MATCHES = Array();
    $NUMERIC = Array();
    // check if the file being uploaded already exists in the file system
    If (Preg_Match('/'.$FILE_NAME.'/', $FILED, $MATCHES)) {
      // if the file already exists let's start peeling off the max count.
      If (Preg_Match('/\(([0-9]+)\)/', $MATCHES, $NUMERIC)) {
        // get the numeric value and create a new count
        $CURRENT_OFFSET         = Preg_Match('/[0-9]/',$NUMERIC[0]);
        $NEW_OFFSET 		= $CURRENT_OFFSET + 1;
        $CHANGED_FILE_NAME 	= $FILE_WO_EXTENSION . ' ('.$NEW_OFFSET.')' . '.' . $FILE_EXT;
      } Else {
        // start the auto id at (1)
        $CHANGED_FILE_NAME 	= $FILE_WO_EXTENSION . '(1).' . $FILE_EXT;
      }
    } Else {
      // file is new - don't do anything.
      $CHANGED_FILE_NAME = $FILE_NAME;
    }
  }
  // close the directory
  closedir($DIR_HANDLE);
}
?>

[gijew]

/bump

Forums been busy lately

[MadTechie]

Maybe somthing like this

 

Test if the file does not exists then use it

<?php
$FILE_NAME = "test.jpg";
$FILE_DIRECTORY = "/path/php5/";

if (preg_match('/(^.*?)+(?:\((\d+)\))?(\.(?:\w){0,3}$)/si', $FILE_NAME, $regs))
{
$filename = $regs[1];
$copies = (int)$regs[2];
$fileext = $regs[3];

$fullfile = $FILE_DIRECTORY.$FILE_NAME;
while(file_exists($fullfile) && !is_dir($fullfile))
{
	$copies = $copies+1;
	$FILE_NAME = $filename."(".$copies.")".$fileext;
	$fullfile = $FILE_DIRECTORY.$FILE_NAME;
}
}
echo $FILE_NAME;
?>

[gijew]

Dude. Awesome!

 

I had to make a few modifications to work right in the actual environment but...it works. Thank you

 

<?php
If (file_exists($FILE_DIRECTORY.$FILE_NAME) && !is_dir($FILE_DIRECTORY.$FILE_NAME)) {
  If (preg_match('/(^.*?)+(?:\((\d+)\))?(\.(?:\w){0,3}$)/si', $FILE_NAME, $OPTIONS)) {
    $OFFSET 	= (int)$OPTIONS[2];
    while(file_exists($FILE_DIRECTORY.$FILE_NAME) && !is_dir($FILE_DIRECTORY.$FILE_NAME)) {
      $OFFSET 	= $OFFSET+1;
      $FILE_NAME 	= $FILE_WO_EXTENSION."(".$OFFSET.").".$FILE_EXT;
      $CHANGED_FILE_NAME = $FILE_NAME;
    }
  }
} Else {
  $CHANGED_FILE_NAME = $FILE_NAME;
}
?>