LiamChapman’s gists

LiamChapman / element-select-find.js

Last active January 1, 2016 23:59

A quick shorthand for selecting elements using the native css selector in javascript e.g. document.find('#foo'); Need to update it to do some chaining

	Document.prototype.find = function (query) {
	if (document.querySelectorAll) {
	var query = this.querySelectorAll(query);
	if (query.length == 1)
	return query[0];
	else
	return query;
	}
	}

LiamChapman / data-attr.js

Last active January 1, 2016 23:59

Shorthand for natively getting and setting data attributes

	Element.prototype.data = function(attr, value) {
	var attr = 'data-'+attr;
	if (value) {
	return this.setAttribute(attr, value);
	} else {
	return this.getAttribute(attr)
	}
	}

LiamChapman / object-merge.js

Last active January 1, 2016 23:59

Basic object merge with javascript e.g. var myObject1 = { 'test1' }; var myObject2 = { 'test2' }; myObject = myObject1.merge(myObject2);

	Object.prototype.merge = function (toMerge) {
	var obj = {};
	// first object
	for (var i in this) {
	obj[i] = this[i];
	}
	// second object
	for (var i in toMerge) {
	obj[i] = toMerge[i];
	}

LiamChapman / shorthand-event-bind.js

Last active January 1, 2016 23:59

Shorthand cross-browser code for binding events to elements e.g. document.getElementById('#foo').on('click', function () { alert('hi!'); });

	Element.prototype.on = function (evnt, func) {
	if (this.addEventListener) // W3C DOM
	this.addEventListener(evnt, func, false);
	else if (this.attachEvent) { // IE DOM
	var r = this.attachEvent("on"+evnt, func);
	return r;
	}
	}

LiamChapman / facebook_request.php

Created February 21, 2014 09:50

For reading app_data in the URL and other other things on Facebook

	<?php

	if (!function_exists('facebook_request')) {
	function facebook_request () {
	if (isset($_REQUEST['signed_request'])) {
	if ($request = $_REQUEST['signed_request']) {
	list($encoded_sig, $payload) = explode('.', $request, 2);
	$decoded = base64_decode(strtr($encoded_sig, '-_', '+/'));
	$data = base64_decode(strtr($payload, '-_', '+/'));
	return json_decode($data, true);

LiamChapman / p.php

Created February 21, 2014 09:52

Shorthand for reading an array or object in a legible way.

	<?php

	if (!function_exists('p')) {
	function p($array) {
	echo '<pre>';
	print_r($array);
	echo '</pre>';
	}
	}

LiamChapman / get_called_class.php

Created February 21, 2014 09:56

Add get_called_class support for php < 5.3. It will be slower though as it uses debug_backtrace.

	<?php

	if (!function_exists('get_called_class') && version_compare(PHP_VERSION, '5.3', '<')) {
	function get_called_class() {
	$bt = debug_backtrace();
	$l = 0;
	do {
	$l++;
	$lines = file($bt[$l]['file']);
	$callerLine = $lines[$bt[$l]['line']-1];

LiamChapman / json.php

Created February 21, 2014 09:57

Small shortand function for reading and encoding JSON in php

	<?php
	if (!function_exists('json')) {
	function json ($data) {
	// if string we return as array
	if (is_string($data)) {
	return json_decode($data, true);
	// if array or object we encode it
	} else if (is_array($data) \|\| is_object($data)) {
	return json_encode($data);
	}

LiamChapman / slugify.php

Created February 21, 2014 09:59

Small function for creating "slugs" or URI in PHP

	<?php

	if (!function_exists('slugify')) {
	function slugify ($str, $replace="-") {
	// replace all non letters or digits by $replace
	$str = preg_replace('/\W+/', $replace, $str);
	// trim and lowercase
	$str = strtolower(trim($str, $replace));
	return $str;
	}

LiamChapman / Singleton.php

Created February 21, 2014 10:14

Common Singleton pattern in php

	<?php

	abstract class Singleton {

	protected function __construct() {}

	final public static function instance () {
	static $instances = array();
	$calledClass = get_called_class();
	if (!isset($instances[$calledClass])) {

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