manual PATH scanner instead of command

command is not always available in shell_exec()
see chrome-php#613 for details

src/AutoDiscover.php

@@ -39,8 +39,24 @@ public function guessChromeBinaryPath(): string
  return '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome';
  case 'Windows':
  return self::getFromRegistry() ?? '%ProgramFiles(x86)%\Google\Chrome\Application\chrome.exe';
- default:
- return \rtrim(\explode("\n", (string) self::shellExec('command -v google-chrome chromium-browser chrome chromium'), 2)[0]) ?: 'chrome';
+ default: {
+ $valid_names = array(
+ 'google-chrome',
+ 'chromium-browser',
+ 'chrome',
+ 'chromium',
+ );
+ foreach (\explode(\PATH_SEPARATOR, \getenv('PATH')) as $dir) {
+ foreach ($valid_names as $name) {
+ $file = $dir . \DIRECTORY_SEPARATOR . $name;
+ if (\is_file($file) && \is_executable($file)) {
+ return $file;
+ }
+ }
+ }
+ return 'chrome'; // ... very unlikely to actually work, but this retains the original behavior..
+ throw new \RuntimeException('Could not find chrome binary'); // this makes more sense tbh
+ }
  }
  }