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<?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; use Symfony\Component\Process\Exception\LogicException; use Symfony\Component\Process\Exception\RuntimeException; /** * PhpSubprocess runs a PHP command as a subprocess while keeping the original php.ini settings. * * For this, it generates a temporary php.ini file taking over all the current settings and disables * loading additional .ini files. Basically, your command gets prefixed using "php -n -c /tmp/temp.ini". * * Given your php.ini contains "memory_limit=-1" and you have a "MemoryTest.php" with the following content: * * <?php var_dump(ini_get('memory_limit')); * * These are the differences between the regular Process and PhpSubprocess classes: * * $p = new Process(['php', '-d', 'memory_limit=256M', 'MemoryTest.php']); * $p->run(); * print $p->getOutput()."\n"; * * This will output "string(2) "-1", because the process is started with the default php.ini settings. * * $p = new PhpSubprocess(['MemoryTest.php'], null, null, 60, ['php', '-d', 'memory_limit=256M']); * $p->run(); * print $p->getOutput()."\n"; * * This will output "string(4) "256M"", because the process is started with the temporarily created php.ini settings. * * @author Yanick Witschi <yanick.witschi@terminal42.ch> * @author Partially copied and heavily inspired from composer/xdebug-handler by John Stevenson <john-stevenson@blueyonder.co.uk> */ class PhpSubprocess extends Process { /** * @param array $command The command to run and its arguments listed as separate entries. They will automatically * get prefixed with the PHP binary * @param string|null $cwd The working directory or null to use the working dir of the current PHP process * @param array|null $env The environment variables or null to use the same environment as the current PHP process * @param int $timeout The timeout in seconds * @param array|null $php Path to the PHP binary to use with any additional arguments */ public function __construct(array $command, ?string $cwd = null, ?array $env = null, int $timeout = 60, ?array $php = null) { if (null === $php) { $executableFinder = new PhpExecutableFinder(); $php = $executableFinder->find(false); $php = false === $php ? null : array_merge([$php], $executableFinder->findArguments()); } if (null === $php) { throw new RuntimeException('Unable to find PHP binary.'); } $tmpIni = $this->writeTmpIni($this->getAllIniFiles(), sys_get_temp_dir()); $php = array_merge($php, ['-n', '-c', $tmpIni]); register_shutdown_function('unlink', $tmpIni); $command = array_merge($php, $command); parent::__construct($command, $cwd, $env, null, $timeout); } public static function fromShellCommandline(string $command, ?string $cwd = null, ?array $env = null, mixed $input = null, ?float $timeout = 60): static { throw new LogicException(\sprintf('The "%s()" method cannot be called when using "%s".', __METHOD__, self::class)); } /** * @param (callable('out'|'err', string):void)|null $callback */ public function start(?callable $callback = null, array $env = []): void { if (null === $this->getCommandLine()) { throw new RuntimeException('Unable to find the PHP executable.'); } parent::start($callback, $env); } private function writeTmpIni(array $iniFiles, string $tmpDir): string { if (false === $tmpfile = @tempnam($tmpDir, '')) { throw new RuntimeException('Unable to create temporary ini file.'); } // $iniFiles has at least one item and it may be empty if ('' === $iniFiles[0]) { array_shift($iniFiles); } $content = ''; foreach ($iniFiles as $file) { // Check for inaccessible ini files if (($data = @file_get_contents($file)) === false) { throw new RuntimeException('Unable to read ini: '.$file); } // Check and remove directives after HOST and PATH sections if (preg_match('/^\s*\[(?:PATH|HOST)\s*=/mi', $data, $matches, \PREG_OFFSET_CAPTURE)) { $data = substr($data, 0, $matches[0][1]); } $content .= $data."\n"; } // Merge loaded settings into our ini content, if it is valid $config = parse_ini_string($content); $loaded = ini_get_all(null, false); if (false === $config || false === $loaded) { throw new RuntimeException('Unable to parse ini data.'); } $content .= $this->mergeLoadedConfig($loaded, $config); // Work-around for https://bugs.php.net/bug.php?id=75932 $content .= "opcache.enable_cli=0\n"; if (false === @file_put_contents($tmpfile, $content)) { throw new RuntimeException('Unable to write temporary ini file.'); } return $tmpfile; } private function mergeLoadedConfig(array $loadedConfig, array $iniConfig): string { $content = ''; foreach ($loadedConfig as $name => $value) { if (!\is_string($value)) { continue; } if (!isset($iniConfig[$name]) || $iniConfig[$name] !== $value) { // Double-quote escape each value $content .= $name.'="'.addcslashes($value, '\\"')."\"\n"; } } return $content; } private function getAllIniFiles(): array { $paths = [(string) php_ini_loaded_file()]; if (false !== $scanned = php_ini_scanned_files()) { $paths = array_merge($paths, array_map('trim', explode(',', $scanned))); } return $paths; } }