How to Parallel Check File Exists in PHP - Code Snippet

// Task: Parallel Check File Exists
// Language: PHP

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