diff --git a/phpmon/Common/Command/CommandProtocol.swift b/phpmon/Common/Command/CommandProtocol.swift
index 9784ae8..0fe4a79 100644
--- a/phpmon/Common/Command/CommandProtocol.swift
+++ b/phpmon/Common/Command/CommandProtocol.swift
@@ -16,7 +16,26 @@ protocol CommandProtocol {
      - Parameter path: The path of the command or program to invoke.
      - Parameter arguments: A list of arguments that are passed on.
      - Parameter trimNewlines: Removes empty new line output.
+     - Parameter withStandardError: Outputs standard error output to the same string output as well.
      */
-    func execute(path: String, arguments: [String], trimNewlines: Bool) -> String
+    func execute(
+        path: String,
+        arguments: [String],
+        trimNewlines: Bool,
+        withStandardError: Bool
+    ) -> String
+
+    /**
+     Immediately executes a command.
+
+     - Parameter path: The path of the command or program to invoke.
+     - Parameter arguments: A list of arguments that are passed on.
+     - Parameter trimNewlines: Removes empty new line output.
+     */
+    func execute(
+        path: String,
+        arguments: [String],
+        trimNewlines: Bool
+    ) -> String
 
 }
diff --git a/phpmon/Common/Command/RealCommand.swift b/phpmon/Common/Command/RealCommand.swift
index 36cde64..11be535 100644
--- a/phpmon/Common/Command/RealCommand.swift
+++ b/phpmon/Common/Command/RealCommand.swift
@@ -9,13 +9,23 @@ import Cocoa
 
 public class RealCommand: CommandProtocol {
 
-    public func execute(path: String, arguments: [String], trimNewlines: Bool = false) -> String {
+    public func execute(
+        path: String,
+        arguments: [String],
+        trimNewlines: Bool,
+        withStandardError: Bool
+    ) -> String {
         let task = Process()
         task.launchPath = path
         task.arguments = arguments
 
         let pipe = Pipe()
         task.standardOutput = pipe
+
+        if withStandardError {
+            task.standardError = pipe
+        }
+
         task.launch()
 
         let data = pipe.fileHandleForReading.readDataToEndOfFile()
@@ -30,4 +40,17 @@ public class RealCommand: CommandProtocol {
         return output
     }
 
+    public func execute(
+        path: String,
+        arguments: [String],
+        trimNewlines: Bool = false
+    ) -> String {
+        self.execute(
+            path: path,
+            arguments: arguments,
+            trimNewlines: trimNewlines,
+            withStandardError: false
+        )
+    }
+
 }
diff --git a/phpmon/Common/PHP/PhpInstallation.swift b/phpmon/Common/PHP/PhpInstallation.swift
index 4b19881..0eb0126 100644
--- a/phpmon/Common/PHP/PhpInstallation.swift
+++ b/phpmon/Common/PHP/PhpInstallation.swift
@@ -12,13 +12,17 @@ class PhpInstallation {
 
     var versionNumber: VersionNumber
 
+    var isHealthy: Bool = true
+
     /**
-     In order to determine details about a PHP installation, we’ll simply run `php-config --version`
-     in the relevant directory.
+     In order to determine details about a PHP installation,
+     we’ll simply run `php-config --version` in the relevant directory.
      */
     init(_ version: String) {
-
         let phpConfigExecutablePath = "\(Paths.optPath)/php@\(version)/bin/php-config"
+
+        let phpExecutablePath = "\(Paths.optPath)/php@\(version)/bin/php"
+
         self.versionNumber = VersionNumber.make(from: version)!
 
         if FileSystem.fileExists(phpConfigExecutablePath) {
@@ -32,6 +36,19 @@ class PhpInstallation {
             // If so, the app SHOULD crash, so that the users report what's up.
             self.versionNumber = try! VersionNumber.parse(longVersionString)
         }
-    }
 
+        if FileSystem.fileExists(phpExecutablePath) {
+            let testCommand = Command.execute(
+                path: phpExecutablePath,
+                arguments: ["-v"],
+                trimNewlines: false,
+                withStandardError: true
+            ).trimmingCharacters(in: .whitespacesAndNewlines)
+
+            if testCommand.contains("Library not loaded") {
+                self.isHealthy = false
+                Log.err("The PHP installation of \(self.versionNumber.short) is not healthy!")
+            }
+        }
+    }
 }
diff --git a/phpmon/Common/Testables/TestableCommand.swift b/phpmon/Common/Testables/TestableCommand.swift
index b7e8503..a3679db 100644
--- a/phpmon/Common/Testables/TestableCommand.swift
+++ b/phpmon/Common/Testables/TestableCommand.swift
@@ -19,6 +19,10 @@ class TestableCommand: CommandProtocol {
         self.execute(path: path, arguments: arguments, trimNewlines: false)
     }
 
+    public func execute(path: String, arguments: [String], trimNewlines: Bool, withStandardError: Bool) -> String {
+        self.execute(path: path, arguments: arguments, trimNewlines: trimNewlines)
+    }
+
     public func execute(path: String, arguments: [String], trimNewlines: Bool) -> String {
         let concatenatedCommand = "\(path) \(arguments.joined(separator: " "))"
         assert(commands.keys.contains(concatenatedCommand), "Command `\(concatenatedCommand)` not found")
diff --git a/phpmon/Domain/Menu/MainMenu+Startup.swift b/phpmon/Domain/Menu/MainMenu+Startup.swift
index e38c14c..7515e62 100644
--- a/phpmon/Domain/Menu/MainMenu+Startup.swift
+++ b/phpmon/Domain/Menu/MainMenu+Startup.swift
@@ -51,10 +51,10 @@ extension MainMenu {
         // Attempt to find out more info about Valet
         if Valet.shared.version != nil {
             Log.info("PHP Monitor has extracted the version number of Valet: \(Valet.shared.version!.text)")
-        }
 
-        // Validate the version (this will enforce which versions of PHP are supported)
-        Valet.shared.validateVersion()
+            // Validate the version (this will enforce which versions of PHP are supported)
+            Valet.shared.validateVersion()
+        }
 
         // Validate the Homebrew version (determines install/upgrade functionality)
         await Brew.shared.determineVersion()
diff --git a/phpmon/Domain/SwiftUI/PhpManager/PhpFormulaeView.swift b/phpmon/Domain/SwiftUI/PhpManager/PhpFormulaeView.swift
index c1f2d75..1cd18e2 100644
--- a/phpmon/Domain/SwiftUI/PhpManager/PhpFormulaeView.swift
+++ b/phpmon/Domain/SwiftUI/PhpManager/PhpFormulaeView.swift
@@ -133,7 +133,7 @@ struct PhpFormulaeView: View {
                             .padding(.horizontal, 5)
                         VStack(alignment: .leading) {
                             Text(formula.displayName).bold()
-                            Text(formula.homebrewFolder)
+                            // Text(formula.homebrewFolder)
 
                             if formula.isInstalled && formula.hasUpgrade {
                                 Text("\(formula.installedVersion!) installed, \(formula.upgradeVersion!) available.")
@@ -350,5 +350,3 @@ class FakeBrewFormulaeHandler: HandlesBrewFormulae {
         ]
     }
 }
-
-
diff --git a/phpmon/Localizable.strings b/phpmon/Localizable.strings
index 6896b70..d7fbb63 100644
--- a/phpmon/Localizable.strings
+++ b/phpmon/Localizable.strings
@@ -106,7 +106,7 @@
 "phpman.refresh.button.description" = "You can press the refresh button to check if any updates are available to installed PHP versions.";
 
 "phpman.has_updates.description" = "One or more updates are available. (Please note that PHP Monitor will always install or update PHP versions in bulk, so you will always upgrade all installations at once.)";
-"phpman.has_updates.button" = "Update All";
+"phpman.has_updates.button" = "Upgrade All";
 
 "phpman.warnings.unsupported.title" = "Your version of Homebrew may cause issues";
 "phpman.warnings.unsupported.desc" = "No functionality is disabled, but some commands may not work as expected. You are currently running Homebrew %@.