file_create_filename

Versions
4.6 – 7: file_create_filename($basename, $directory)

Create a full file path from a directory and filename. If a file with the specified name already exists, an alternative will be used.

Parameters

$basename string filename

$directory string directory

▸ 1 function calls file_create_filename()

▾ 1 function calls file_create_filename()

file_destination in includes/file.inc: Determines the destination path for a file depending on how replacement of existing files should be handled.

Code

includes/file.inc, line 404

<?php
function file_create_filename($basename, $directory) {
  $dest = $directory .'/'. $basename;

  if (file_exists($dest)) {
    // Destination file already exists, generate an alternative.
    if ($pos = strrpos($basename, '.')) {
      $name = substr($basename, 0, $pos);
      $ext = substr($basename, $pos);
    }
    else {
      $name = $basename;
    }

    $counter = 0;
    do {
      $dest = $directory .'/'. $name .'_'. $counter++ . $ext;
    } while (file_exists($dest));
  }

  return $dest;
}
?>

Documentation needs expanding

allain - Fri, 2009-10-02 20:36

In the description of the function it says "an alternative will be used.", what alternative?

Short of reading the code, it's difficult to tell what the alternatives are.