What is the issue with sorting strings in PHP based on file names in a folder?

When sorting strings in PHP based on file names in a folder, the issue arises when the file names contain numbers. By default, PHP's sorting functions sort strings in alphabetical order, which can lead to unexpected results when dealing with filenames that contain numbers. To solve this issue, you can use a custom sorting function that takes into account the numerical values within the strings. 

// Get an array of file names in a folder
$files = scandir('path/to/folder');

// Custom sorting function to sort file names with numbers correctly
usort($files, function($a, $b) {
    return strnatcmp($a, $b);
});

// Output the sorted file names
foreach ($files as $file) {
    echo $file . "\n";
}

Keywords

PHP sorting strings file names folder

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