What are the potential drawbacks of using scandir for sorting images in PHP?

Using scandir to sort images in PHP may not always guarantee the desired order, as it sorts files based on their filenames. This can lead to unexpected results if the filenames are not in a consistent format or if there are other files mixed in with the images. To ensure proper sorting, it's better to use a custom sorting function that sorts the images based on their creation or modification dates. 

$directory = 'path/to/images';
$images = array_diff(scandir($directory), array('..', '.'));

usort($images, function($a, $b) use ($directory) {
    $fileA = $directory . '/' . $a;
    $fileB = $directory . '/' . $b;
    
    return filemtime($fileA) - filemtime($fileB);
});

foreach ($images as $image) {
    echo $image . "\n";
}

Keywords

scandir sorting images PHP drawbacks

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