name : ProcessUtils.php <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Process; /** * ProcessUtils is a bunch of utility methods. * * This class contains static methods only and is not meant to be instantiated. * * @author Martin Hasoň <martin.hason@gmail.com> */ class ProcessUtils { /** * This class should not be instantiated */ private function __construct() { } /** * Escapes a string to be used as a shell argument. * * @param string $argument The argument that will be escaped * * @return string The escaped argument */ public static function escapeArgument($argument) { //Fix for PHP bug #43784 escapeshellarg removes % from given string //Fix for PHP bug #49446 escapeshellarg doesn't work on Windows //@see https://bugs.php.net/bug.php?id=43784 //@see https://bugs.php.net/bug.php?id=49446 if (defined('PHP_WINDOWS_VERSION_BUILD')) { if ('' === $argument) { return escapeshellarg($argument); } $escapedArgument = ''; $quote = false; foreach (preg_split('/(")/i', $argument, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE) as $part) { if ('"' === $part) { $escapedArgument .= '\\"'; } elseif (self::isSurroundedBy($part, '%')) { // Avoid environment variable expansion $escapedArgument .= '^%"'.substr($part, 1, -1).'"^%'; } else { // escape trailing backslash if ('\\' === substr($part, -1)) { $part .= '\\'; } $quote = true; $escapedArgument .= $part; } } if ($quote) { $escapedArgument = '"'.$escapedArgument.'"'; } return $escapedArgument; } return escapeshellarg($argument); } private static function isSurroundedBy($arg, $char) { return 2 < strlen($arg) && $char === $arg[0] && $char === $arg[strlen($arg) - 1]; } }