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<?php
// Requires PHP 5.3+
// Found here: http://stackoverflow.com/a/1320156

function flatten_array(array $array) {
    $flattened_array = array();
    array_walk_recursive($array, function($a) use (&$flattened_array) { $flattened_array[] = $a; });
    return $flattened_array;
}

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Install latest XDebug for MAMP php

The installation of XDebug requires some additional steps to make it work:

1. Change the local bash files to address the MAMP version of php.
2. Download the same version of php that you want to use within MAMP from php.net and build it manually.
3. Download XDebug and follow the installation instructions as provided by the XDebug website.

Step-by-step guide:

1. Adjust the bash files to address the MAMP php version

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<?php
// From: Newslist en - 25.4.2014
// http://wiki.typo3.org/Felogin#Users_manual

// Add this line in my ext_localconf:
$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['felogin']['login_confirmed'][] = 'tx_myextension->myfunction';

// And in my class extension:
class tx_myextension extends {
  public function myfunction() {

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/************************
 * Vars
 ***********************/
 
// standard default browser font size is 16px
$base_font_size = 16

// bring the base font size upto 18px while respecting the client's individual browser setting
$base_font_size_ems = unit($base_font_size / 16, em)

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/* Text hiding without indent */

.ir {
	border: 0;
	font: 0/0 a;
	text-shadow:none;
	color: transparent;
	background-color: transparent;
}