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@fiboknacky @vtsao @thangduo
executable file 62 lines (54 sloc) 2.03 KB
<?php
/**
* Copyright 2016 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
namespace Google\AdsApi\Common\Util;
use UnexpectedValueException;
/**
* Provides methods for obtaining environmental variables in a
* platform-independant manner.
*/
class EnvironmentalVariables
{
/**
* Attempts to find the home directory of the user running the PHP script.
*
* @return string the path to the home directory with any trailing directory
* separators removed
* @throws UnexpectedValueException if a home directory could not be found
*/
public function getHome()
{
$home = null;
if (!empty(getenv('HOME'))) {
// Try the environmental variables.
$home = getenv('HOME');
} elseif (!empty($_SERVER['HOME'])) {
// If not in the environment variables, check the superglobal $_SERVER as
// a last resort.
$home = $_SERVER['HOME'];
} elseif (!empty(getenv('HOMEDRIVE')) && !empty(getenv('HOMEPATH'))) {
// If the 'HOME' environmental variable wasn't found, we may be on
// Windows.
$home = getenv('HOMEDRIVE') . getenv('HOMEPATH');
} elseif (!empty($_SERVER['HOMEDRIVE']) && !empty($_SERVER['HOMEPATH'])) {
$home = $_SERVER['HOMEDRIVE'] . $_SERVER['HOMEPATH'];
}
if ($home === null) {
throw new UnexpectedValueException('Could not locate home directory.');
}
return rtrim($home, '\\/');
}
}
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