Allianzcortex

PHP Developer Interview: What you should know

1. What’s the difference between " self " and " this " ?

Use $this to refer to the current object. Use self to refer to the current class. In other words, use $this->member for non-static members, use self::$member for static members.

Source: When to use self vs this -stackoverflow

##Ubuntu Server

NodeJS

sudo apt-get install g++ curl libssl-dev apache2-utils git-core make
cd /usr/local/src
wget http://nodejs.org/dist/v0.10.28/node-v0.10.28.tar.gz
tar -xvzf node-v0.10.28.tar.gz
cd node-v0.10.28

>>> docker exec -it CONTAINERID /bin/sh
/app # telnet
/bin/sh: telnet: not found

/app # apk update
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
v3.7.0-243-gf26e75a186 [http://dl-cdn.alpinelinux.org/alpine/v3.7/main]
v3.7.0-229-g087f28e29d [http://dl-cdn.alpinelinux.org/alpine/v3.7/community]

	// Concurrent.go
	// Simple example that demonstrates usage of Go routines.
	package main

	import (
	"fmt"
	"time"
	"math/rand"
	)

	let map = new Map();
	map.set("a", 1);
	map.set("b", 2);
	map.set("c", 3);

	let obj = Array.from(map).reduce((obj, [key, value]) => (
	Object.assign(obj, { [key]: value }) // Be careful! Maps can have non-String keys; object literals can't.
	), {});

	console.log(obj); // => { a: 1, b: 2, c: 3 }

	from collections import defaultdict, deque


	class Graph(object):
	def __init__(self):
	self.nodes = set()
	self.edges = defaultdict(list)
	self.distances = {}

	def add_node(self, value):

	package main

	/*

	Copyright 2017 Shapath Neupane (@theshapguy)

	Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

	package main

	import (
	"fmt"
	"log"

	"github.com/gin-gonic/gin"
	)

	type CreateParams struct {

	@echo off
	FOR /f "tokens=*" %%i IN ('docker ps -aq') DO docker rm %%i
	FOR /f "tokens=*" %%i IN ('docker images --format "{{.ID}}"') DO docker rmi %%i

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8" />
	<title>Add React in One Minute</title>
	</head>
	<body>

	<h2>Add React in One Minute</h2>
	<p>This page demonstrates using React with no build tooling.</p>