platform-trace/app/Console/Commands/Generate.php

<?php

namespace App\Console\Commands;

use App\Models\Meta;
use App\Models\Serialize;
use BlockMatrix\EosRpc\ChainFactory;
use BlockMatrix\EosRpc\EosRpc;
use BlockMatrix\EosRpc\WalletFactory;
use Carbon\Carbon;
use GuzzleHttp\Client;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Storage;
use Org\Multilinguals\Apollo\Client\ApolloClient;
use ZanySoft\Zip\Zip;

class Generate extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'generate:randstr';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '生成序列串';


    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        ini_set('memory_limit','128M');
        $this->line('-----------start---------');
        $pass=[];
        $data=[];
        do{
            $str = $this->getRandomString(3);
            //生成3位，并且最少包含一位数字
            $preg = '/^(?=[a-z]*[0-9])(?=[0-9]*[a-z])[a-z0-9]{3,3}$/';
            if(preg_match($preg,$str)){
                if(!in_array($str,$pass)){
                    $pass[] = $str;
                    $data['serialize'] = $str;
                    Serialize::create($data);
                }
            }
        }while (count($pass)<20000);

        $this->line('-----------end--------');
    }

    private function getRandomString($len, $chars=null)
    {
        if (is_null($chars)){
            $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
        }
        mt_srand(10000000*(double)microtime());
        for ($i = 0, $str = '', $lc = strlen($chars)-1; $i < $len; $i++){
            $str .= $chars[mt_rand(0, $lc)];
        }
        return $str;
    }
}