Rename all files in a directory with numbers - php

Question

I was wondering if anyone could help me write a PHP script for me that renames all the files in a directory in a sequence.
So...
DSC_10342.JPG -> 1.JPG
DSC_10343.JPG -> 2.JPG
DSC_10344.JPG -> 3.JPG
and so on.

Answer 1

Here's my version:
// open the current directory (change this to modify where you're looking)
$dir = opendir('.');
$i = 1;
// loop through all the files in the directory
while (false !== ($file = readdir($dir)))
{
// if the extension is '.jpg'
if (strtolower(pathinfo($file, PATHINFO_EXTENSION)) == 'jpg')
{
// do the rename based on the current iteration
$newName = $i . '.jpg';
rename($file, $newName);
// increase for the next loop
$i++;
}
}
// close the directory handle
closedir($dir);

Answer 2

Use rename to rename the files. You can use this handy script to loop through all files in a directory:
<?php
if ($handle = opendir('.')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
echo "$file\n";
}
}
closedir($handle);
}
?>
Then it's just a matter of looking at the filenames ($file) and figuring out what number to give them. If you need more help than that, just tell me and I'll give more details.

Answer 3

Try this:
$handler = opendir($directory);
$index = 1;
while ($file = readdir($handler)) {
if ($file != "." && $file != "..") {
rename($directory."/".$file, $directory."/".$index.".JPG");
$index++;
}
}
closedir($handler);

Answer 4

Using someone's snippet it would look like this:
<?php
$path = '.';
$i = 1;
if ($handle = opendir($path)) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != ".." && is_file($path.'/'.$file)) {
$oldname = $path.'/'.$file;
$path_info = pathinfo($oldname);
rename($oldname, $path.'/'.($i++).'.'.$path_info['extension']);
}
}
closedir($handle);
}
?>
It will rename files with all extensions and skip directories that may be inside your directory.