Tony Huỳnh mrtonyhuynh

Two way iframe communication

The main difference between the two pages is the method of sending messages. Recieving messages is the same in both.

Parent

Send messages to iframe using iframeEl.contentWindow.postMessage Recieve messages using window.addEventListener('message')

iframe

SQL to MongoDB Mapping Chart

SQL to MongoDB Mapping Chart¶

In addition to the charts that follow, you might want to consider the Frequently Asked Questions section for a selection of common questions about MongoDB.

Executables¶

The following table presents the MySQL/Oracle executables and the corresponding MongoDB executables.

Setting up Nginx-Apache Reverse Proxy, PHP, & MariaDB with SSL on EC2/Lightsail with Amazon Linux

Final setup should consists of:

NGINX (reverse proxy & static contents)
- Supports SSL (Let's Encrypt).
- Supports multiple domains, 1 IP.
Apache 2.4 (Dynamic content: PHP)
PHP 7.1
MariaDB 10.1

PHP Style Guide

All rules and guidelines in this document apply to PHP files unless otherwise noted. References to PHP/HTML files can be interpreted as files that primarily contain HTML, but use PHP for templating purposes.

The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.

Most sections are broken up into two parts:

Overview of all rules with a quick example
Each rule called out with examples of do's and don'ts

SCSS

Cool things you may not have known your stylesheets could do. I'd rather have kept it to a nice round number like 10, but they just kept coming. Sorry.

I've been using SCSS/SASS for most of my styling work since 2009, and I'm a huge fan of Compass (by the great @chriseppstein). It really helped many of us through the darkest cross-browser crap. Even though browsers are increasingly playing nice with CSS, another problem has become very topical: managing the complexity in stylesheets as our in-browser apps get larger and larger. SCSS is an indispensable tool for dealing with this.

This isn't an introduction to the language by a long shot; many things probably won't make sense unless you have some SCSS under your belt already. That said, if you're not yet comfy with the basics, check out the awesome CSS extensions you've always wished you had:

[Nested selectors

	//helper function for 'x hours/minutes/seconds ago' - should be passed a time in php time format
	function time_elapsed_string($ptime)
	{
	$etime = time() - $ptime;

	if ($etime < 1)
	{
	return '0 seconds';
	}

	/**
	* https://gist.github.com/tborychowski/3799025
	*/
	var UTILS = {
	/jshint maxlen: 500, onevar: false /

	isTouch : (/iPhone\|iPod\|iPad/ig).test(navigator.userAgent),

	/**
	* Modified & lintified version of https://gist.github.com/527683

	Perl and PHP Regular Expressions

	PHP regexes are based on the PCRE (Perl-Compatible Regular Expressions), so any regexp that works for one should be compatible with the other or any other language that makes use of the PCRE format. Here are some commonly needed regular expressions for both PHP and Perl. Each regex will be in string format and will include delimiters.
	All Major Credit Cards

	This regular expression will validate all major credit cards: American Express (Amex), Discover, Mastercard, and Visa.

	//All major credit cards regex
	'/^(?:4[0-9]{12}(?:[0-9]{3})?\|5[1-5][0-9]{14}\|6011[0-9]{12}\|622((12[6-9]\|1[3-9][0-9])\|([2-8][0-9][0-9])\|(9(([0-1][0-9])\|(2[0-5]))))[0-9]{10}\|64[4-9][0-9]{13}\|65[0-9]{14}\|3(?:0[0-5]\|[68][0-9])[0-9]{11}\|3[47][0-9]{13})*$/'

	<?php
	// PHP memory limit for this site
	define( 'WP_MEMORY_LIMIT', '128M' );

	// Explicitely setting url
	define( 'WP_HOME', 'http://domain.com' );
	define( 'WP_SITEURL', 'http://domain.com' );

	// Set url to... whatever.
	define( 'WP_HOME', 'http://' . $_SERVER['HTTP_HOST'] );