Are there any best practices or considerations to keep in mind when developing a script to display a random set of images from a folder in PHP?

When developing a script to display a random set of images from a folder in PHP, it is important to ensure that the images are randomly selected each time the script is run. One way to achieve this is by using the `scandir()` function to read the files in the folder, filtering out any non-image files, and then using `array_rand()` to select a random subset of images to display. 

<?php
// Path to the folder containing images
$folder = 'path/to/images/';

// Get a list of all files in the folder
$files = array_diff(scandir($folder), array('..', '.'));

// Filter out non-image files
$images = array_filter($files, function($file) {
    return preg_match('/\.(jpg|jpeg|png|gif)$/i', $file);
});

// Select a random subset of images to display
$random_images = array_rand($images, 3);

// Display the random images
foreach ($random_images as $index) {
    echo '<img src="' . $folder . $images[$index] . '" alt="Random image">';
}
?>

Keywords

file handling array_rand shuffle image processing error handling

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