TomZhuPlanetart

<?php


enum PullStatus {
    case PENDING;
    case RESOLVED;
}

class Future {
    private $callbacks = [];

TomZhuPlanetart

FROM amazonlinux:2

RUN yum install -y httpd vim 
RUN amazon-linux-extras enable php8.2 && yum clean metadata
RUN yum install -y php-bcmath.x86_64 \
    php-cli.x86_64 \
    php-dba.x86_64 \
    php-dbg.x86_64 \
    php-devel.x86_64 \
    php-enchant.x86_64 \

TomZhuPlanetart

Key Formats

• RFC4716: SSH2 public or private key. Begins with -----BEGIN OPENSSH PRIVATE KEY-----
• PKCS#8: PKCS8 public or private key. Use the -m PKCS8 option of ssh-keygen. Begins with -----BEGIN PUBLIC KEY-----
• PKCS#1
• DER: Binary format
• PEM: PEM public key. This refers to PKCS#8 when it's used in openssl commands.

PKCS8/PKCS1 are specifically for RSA keys.

TomZhuPlanetart

Encrypt with AES

Let's encrypt something

echo hello world | openssl enc -aes-256-cbc -pass pass:hello -iter 10 -in - -out - | base64

The output looks like:

TomZhuPlanetart

With the help of recursion clause (https://www.regular-expressions.info/recurse.html),

(\w*|\w*::\w*)\((?:\s*((?<=\()|(?<!\(),)\s*((?R)|\$\w+)\s*)*\)

This expression matches function calls like below:

Registry::initRegistry(registry( $a, $b, abc( $a, $b, $c), $d));

TomZhuPlanetart

### https://linuxcommand.org/lc3_adv_tput.php

# save the content of the screen
tput smcup
tput cup 0 0

for ((i=0; i<10; i++)); do
    # set forground color
    tput setaf $i

TomZhuPlanetart

<?php
/**
 * User: Tom.Zhu<tom.zhu@planetart.cn>
 * Date: 2022/10/7
 * Time: 23:34
 */

$base = new EventBase();

$start = microtime(true);

TomZhuPlanetart

<?php
/**
 * User: Tom.Zhu<tom.zhu@planetart.cn>
 * Date: 2022/9/28
 * Time: 22:13
 */

class FiberFactory
{
    private static WeakMap $weakMap;