Refactor phpvmrc.js to improve findPHPVMRCFile and autoSwitchPHPVersion functions

Author: Thavarshan

lib/utils/phpvmrc.js

@@ -11,12 +11,16 @@ const { usePHPVersion } = require('../commands/use');
 function findPHPVMRCFile(startDir = process.cwd()) {
   let currentDir = startDir;
 
-  while (currentDir !== '/') {
+  while (true) {
     const phpvmrcPath = path.join(currentDir, '.phpvmrc');
     if (fs.existsSync(phpvmrcPath)) {
       return phpvmrcPath;
     }
-    currentDir = path.resolve(currentDir, '..');
+
+    const parentDir = path.resolve(currentDir, '..');
+    if (parentDir === currentDir) break; // Stop if we've reached the root directory
+
+    currentDir = parentDir;
   }
 
   return null;
@@ -41,10 +45,10 @@ async function autoSwitchPHPVersion() {
     } catch (error) {
       console.error(`Failed to switch to PHP ${version}: ${error.message}`);
     }
-  } else {
-    // Silent if no .phpvmrc file is found
-    return;
   }
+
+  // Silent return when no .phpvmrc is found
+  return;
 }
 
 module.exports = { findPHPVMRCFile, autoSwitchPHPVersion };