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Git Submodules basic explanation

Why submodules?

In Git you can add a submodule to a repository. This is basically a repository embedded in your main repository. This can be very useful. A couple of advantages of using submodules:

You can separate the code into different repositories.

Xdebug Installation

Please follow the following steps to configure Xdebug on Linux.

Tested on

⇐ back to the gist-blog at jrw.fi

Advanced SCSS

Or, 16 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 aweso

Bookmarklet

Copy and paste this into a bookmark:

javascript:!function(d){d.head.appendChild(d.createElement("style")).innerText="html,img,video{-webkit-filter:invert(1)hue-rotate(180deg);filter:invert(1)hue-rotate(180deg)}body{background:#000}"}(document);

Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

Creating a VM

vagrant init -- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.
vagrant init <boxpath> -- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example, vagrant init ubuntu/trusty64.

Starting a VM

vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)

This page provides a full overview of PHP's SessionHandler life-cycle - this was generated by a set of test-scripts, in order to provide an exact overview of when and what you can expect will be called in your custom SessionHandler implementation.

Each example is a separate script being run by a client with cookies enabled.

To the left, you can see the function being called in your script, and to the right, you can see the resulting calls being made to a custom session-handler registed using session_set_save_handler().

	<?php
	// See: http://blog.ircmaxell.com/2013/02/preventing-csrf-attacks.html

	// Start a session (which should use cookies over HTTP only).
	session_start();

	// Create a new CSRF token.
	if (! isset($_SESSION['csrf_token'])) {
	$_SESSION['csrf_token'] = base64_encode(openssl_random_pseudo_bytes(32));
	}

	var parser = document.createElement('a');
	parser.href = "http://example.com:3000/pathname/?search=test#hash";

	parser.protocol; // => "http:"
	parser.hostname; // => "example.com"
	parser.port; // => "3000"
	parser.pathname; // => "/pathname/"
	parser.search; // => "?search=test"
	parser.hash; // => "#hash"
	parser.host; // => "example.com:3000"

	<?php
	/**
	* Case in-sensitive array_search() with partial matches
	*
	* @param string $needle The string to search for.
	* @param array $haystack The array to search in.
	*
	* @author Bran van der Meer <[email protected]>
	* @since 29-01-2010
	*/

	<html>
	<body>
	<p>Here are Webber’s points:</p>
	<ul>
	<li>If a method can be static, declare it static. Speed improvement is by a factor of 4.</li>
	<li>echo is faster than print.(<em>* compare with list from phplens by John Lim</em>)</li>
	<li>Use echo’s multiple parameters instead of string concatenation.</li>
	<li>Set the maxvalue for your for-loops before and not in the loop.</li>
	<li>Unset your variables to free memory, especially large arrays.</li>
	<li>Avoid magic like __get, __set, __autoload</li>