What are some potential pitfalls to consider when creating a picture board using PHP for image display?

One potential pitfall to consider when creating a picture board using PHP for image display is the risk of exposing sensitive information in the file paths. To mitigate this risk, it is important to sanitize user input and validate file paths before displaying images on the board. 

// Sanitize and validate file paths before displaying images
$directory = '/path/to/images/';

if (isset($_GET['image'])) {
    $image = $_GET['image'];
    
    // Validate file path
    if (strpos($image, '..') === false && file_exists($directory . $image)) {
        echo '<img src="' . $directory . $image . '" alt="Image">';
    } else {
        echo 'Invalid image path';
    }
}

Keywords

file uploads image manipulation memory management security vulnerabilities error handling

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