<?php

/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Composer\Util;

use Composer\XdebugHandler\XdebugHandler;

/**
* Provides ini file location functions that work with and without a restart.
* When the process has restarted it uses a tmp ini and stores the original
* ini locations in an environment variable.
*
* @author John Stevenson <john-stevenson@blueyonder.co.uk>
*/
class IniHelper
{
/**
* Returns an array of php.ini locations with at least one entry
*
* The equivalent of calling php_ini_loaded_file then php_ini_scanned_files.
* The loaded ini location is the first entry and may be empty.
*
* @return array
*/
public static function getAll()
{
return XdebugHandler::getAllIniFiles();
}

/**
* Describes the location of the loaded php.ini file(s)
*
* @return string
*/
public static function getMessage()
{
$paths = self::getAll();

if (empty($paths[0])) {
array_shift($paths);
}

$ini = array_shift($paths);

if (empty($ini)) {
return 'A php.ini file does not exist. You will have to create one.';
}

if (!empty($paths)) {
return 'Your command-line PHP is using multiple ini files. Run `php --ini` to show them.';
}

return 'The php.ini used by your command-line PHP is: '.$ini;
}
}