[TOOLS] CLI for GZ Deflate

#!/usr/bin/env php
<?php

$file = [
    'name' => @$argv[2] ?? '',
    'data' => @file_get_contents($argv[2])
];

$argv[1] = @$argv[1] ?? '';

switch ($argv[1]) {
    case 'i':
        if(empty($file['name']))
            die("[ERROR] no input file specified\n");

        if(!file_exists($file['name']))
            die("[ERROR] file `{$file['name']}` does not exist\n");
        file_put_contents($file['name'], gzinflate($file['data']));
        break;
    case 'd':
        if(empty($file['name']))
            die("[ERROR] no input file specified\n");

        if(!file_exists($file['name']))
            die("[ERROR] file `{$file['name']}` does not exist\n");
        file_put_contents($file['name'], gzdeflate($file['data']));
        break;
    case '':
        die("[ERROR] no action specified\n");
        break;
    default:
        die("[ERROR] unknown action `{$argv[1]}`\n");
        break;
}