How to Parallel Append to File in PHP - Code Snippet

// Task: Parallel Append to File
// Language: PHP

function parallel_append_to_file() {
    // Implementation for Parallel Append to File
    $ result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Parallel Append to File
    echo("Done");
}