How to Async Convert Image Format in PHP - Code Snippet

// Task: Async Convert Image Format
// Language: PHP

function async_convert_image_format() {
    // Implementation for Async Convert Image Format
    $ result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Async Convert Image Format
    echo("Done");
}