mxlje

These commands are needed every time you want to generate a new certificate signing request to give to an authority in order for them to generate and sign a certificate for you.

https://letsencrypt.org/ solves a lot of the pain involved with SSL certs, but sometimes you still need to go the "old school" route. I constantly forget how this stuff works, so I collected the most important commands (and what they do) here for easy copy & paste.

Generate new private key

lyrixx

<?php

register_tick_function(function() {
    $bt = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1);
    $last = reset($bt);
    $info = sprintf("%s +%d\n", $last['file'], $last['line']);
    file_put_contents('/tmp/segfault.txt', $info, FILE_APPEND);
    // or
    // file_put_contents('php://output', $info, FILE_APPEND);
});

lyrixx

#!/bin/bash

BASE_PATH=`dirname $0`/..
ASSETS_PATH=$BASE_PATH/app/Resources/assets
ASSETS_PATH2=$BASE_PATH/src/SensioLabs/Bundle/InsightAnalysisBundle/Resources/public

if [[ `which inotifywait` ]]; then
    while true; do
        inotifywait -r -e modify -e move -e create -e delete $ASSETS_PATH/ $ASSETS_PATH2/ | while read line; do
            php $BASE_PATH/app/console assetic:dump --force

pborreli

Go to Google bigquery and execute the following query replacing XXX with your GitHub login

hSATAC

package main

import (
    "log"
    "net/http"
)

func redirect(w http.ResponseWriter, r *http.Request) {

    http.Redirect(w, r, "http://www.google.com", 301)

nikic

Why objects (usually) use less memory than arrays in PHP

This is just a small post in response to [this tweet][tweet] by Julien Pauli (who by the way is the release manager for PHP 5.5). In the tweet he claims that objects use more memory than arrays in PHP. Even though it can be like that, it's not true in most cases. (Note: This only applies to PHP 5.4 or newer.)

The reason why it's easy to assume that objects are larger than arrays is because objects can be seen as an array of properties and a bit of additional information (like the class it belongs to). And as array + additional info > array it obviously follows that objects are larger. The thing is that in most cases PHP can optimize the array part of it away. So how does that work?

The key here is that objects usually have a predefined set of keys, whereas arrays don't:

n1k0

/**
 * This casper scipt checks for 404 internal links for a given root url.
 *
 * Usage:
 *
 *     $ casperjs 404checker.js http://mysite.tld/
 *     $ casperjs 404checker.js http://mysite.tld/ --max-depth=42
 */

/*global URI*/

naholyr

Sample service script for debianoids

Look at LSB init scripts for more information.

Usage

Copy to /etc/init.d:

# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)

webmozart

#!/bin/bash
COMMIT=$1
BRANCH=$2

if [ -z $BRANCH ]; then
    BRANCH="master"
fi

perl -ne 'print if ($seen{$_} .= @ARGV) =~ /10$/' \
    <(git rev-list --ancestry-path --oneline $COMMIT..$BRANCH) \

ladyada

#!/usr/bin/python

# Light painting / POV demo for Raspberry Pi using
# Adafruit Digital Addressable RGB LED flex strip.
# ----> http://adafruit.com/products/306

import RPi.GPIO as GPIO, Image, time

# Configurable values
filename  = "hello.png"