Find duplicates names in array-CodePudding

My problem is this: I have an array in which I collect all the files of a hard disk, like:

$files = Array(
    [0] => E:\\folder1\file1.mp4
    [1] => E:\\folder1\folder1a\file2.mp4
    [2] => E:\\folder2\folder2a\file3.avi
    [3] => E:\\folder2\folder2a\file4.avi
    [4] => E:\\folder2\folder2a\file5.avi
    [5] => E:\\folder2\folder2a\file6.avi
    [6] => E:\\folder2\folder2a\file7.avi
    [7] => E:\\folder2\folder2a\file8.mkv
    [8] => E:\\folder2\folder2a\file9.avi
    [9] => E:\\folder2\folder2a\Dracula 1931.avi
    [10] => E:\\folder2\folder2a\file1.mp4
...
   [2345] => E:\\folder324\folder324a\folder324aa\file5456789.mp4
)

In this array I would like to find all the duplicate names, regardless of the case and the folders in which they are located and then display an echo in order to print on screen this:

file1.avi is duplicated in:
E:\\folder1\
E:\\folder2\\folder2a\\

I tried this:


foreach($files as $ind => $c) {
    $name = basename($c); 
    $dups[] = $name;
}
    
foreach (array_count_values($dups) as $indd => $rty) {
    if ($rty > 1) echo $indd . " is duplicated in: <br/>";
}

But I don't know how to view folders.

CodePudding user response：

You need to keep track of the directories in which the file is, so first build up a list of the directories using the filename as the key...

$dups = [];
foreach ($files as $c) {
    $dups[basename($c)][] = dirname($c);
}

Second loop over this and if there is more than one directory (the count() is > 1) then echo out the key (the filename) and the directories (using implode() to show them together)...

foreach ($dups as $fileName => $rty) {
    if (count($rty) > 1) {
        echo $fileName . ' is duplicated in: ' . implode(', ', $rty) . PHP_EOL;
    }
}

CodePudding user response：

You can try this:

$names = array("John", "Jane", "John", "Tom", "Jane");

// Use array_count_values to count the frequency of each value

$counts = array_count_values($names);

// Iterate through the counts array and print the names that appear more than once

foreach ($counts as $name => $count) {
  if ($count > 1) {
    echo "Duplicate name: $name\n";
  }
}