diff --git a/__tests__/utils.test.ts b/__tests__/utils.test.ts
index e0f796e3..504ac12e 100644
--- a/__tests__/utils.test.ts
+++ b/__tests__/utils.test.ts
@@ -17,13 +17,20 @@ async function cleanup(path: string): Promise<void> {
 }
 
 describe('Utils tests', () => {
+  it('checking readEnv', async () => {
+    process.env['test'] = 'setup-php';
+    expect(await utils.readEnv('test')).toBe('setup-php');
+    expect(await utils.readEnv('undefined')).toBe('');
+  });
+
   it('checking getInput', async () => {
     process.env['test'] = 'setup-php';
-    process.env['undefined'] = '';
     expect(await utils.getInput('test', false)).toBe('setup-php');
-    expect(await utils.getInput('undefined', false)).toBe('');
     expect(await utils.getInput('setup-php', false)).toBe('setup-php');
     expect(await utils.getInput('DoesNotExist', false)).toBe('');
+    expect(async () => {
+      await utils.getInput('DoesNotExist', true);
+    }).rejects.toThrow('Input required and not supplied: DoesNotExist');
   });
 
   it('checking parseVersion', async () => {
diff --git a/dist/index.js b/dist/index.js
index 0a720549..8fdfceb7 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1097,10 +1097,25 @@ var __importStar = (this && this.__importStar) || function (mod) {
     return result;
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.customPackage = exports.scriptExtension = exports.joins = exports.getCommand = exports.getUnsupportedLog = exports.suppressOutput = exports.getExtensionPrefix = exports.CSVArray = exports.extensionArray = exports.writeScript = exports.readScript = exports.addLog = exports.stepLog = exports.log = exports.color = exports.asyncForEach = exports.parseVersion = exports.getInput = void 0;
+exports.customPackage = exports.scriptExtension = exports.joins = exports.getCommand = exports.getUnsupportedLog = exports.suppressOutput = exports.getExtensionPrefix = exports.CSVArray = exports.extensionArray = exports.writeScript = exports.readScript = exports.addLog = exports.stepLog = exports.log = exports.color = exports.asyncForEach = exports.parseVersion = exports.getInput = exports.readEnv = void 0;
 const fs = __importStar(__webpack_require__(747));
 const path = __importStar(__webpack_require__(622));
 const core = __importStar(__webpack_require__(470));
+/**
+ * Function to read environment variable and return a string value.
+ *
+ * @param property
+ */
+async function readEnv(property) {
+    const value = process.env[property];
+    switch (value) {
+        case undefined:
+            return '';
+        default:
+            return value;
+    }
+}
+exports.readEnv = readEnv;
 /**
  * Function to get inputs from both with and env annotations.
  *
@@ -1108,13 +1123,17 @@ const core = __importStar(__webpack_require__(470));
  * @param mandatory
  */
 async function getInput(name, mandatory) {
-    const input = process.env[name];
-    switch (input) {
-        case '':
-        case undefined:
-            return core.getInput(name, { required: mandatory });
-        default:
+    const input = core.getInput(name);
+    const env_input = await readEnv(name);
+    switch (true) {
+        case input != '':
             return input;
+        case input == '' && env_input != '':
+            return env_input;
+        case input == '' && env_input == '' && mandatory:
+            throw new Error(`Input required and not supplied: ${name}`);
+        default:
+            return '';
     }
 }
 exports.getInput = getInput;
diff --git a/src/utils.ts b/src/utils.ts
index c54e8e58..1f1460db 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -2,6 +2,21 @@ import * as fs from 'fs';
 import * as path from 'path';
 import * as core from '@actions/core';
 
+/**
+ * Function to read environment variable and return a string value.
+ *
+ * @param property
+ */
+export async function readEnv(property: string): Promise<string> {
+  const value = process.env[property];
+  switch (value) {
+    case undefined:
+      return '';
+    default:
+      return value;
+  }
+}
+
 /**
  * Function to get inputs from both with and env annotations.
  *
@@ -12,13 +27,17 @@ export async function getInput(
   name: string,
   mandatory: boolean
 ): Promise<string> {
-  const input = process.env[name];
-  switch (input) {
-    case '':
-    case undefined:
-      return core.getInput(name, {required: mandatory});
-    default:
+  const input = core.getInput(name);
+  const env_input = await readEnv(name);
+  switch (true) {
+    case input != '':
       return input;
+    case input == '' && env_input != '':
+      return env_input;
+    case input == '' && env_input == '' && mandatory:
+      throw new Error(`Input required and not supplied: ${name}`);
+    default:
+      return '';
   }
 }