fixed #94

index.php

@@ -6,6 +6,14 @@
  * @link        https://akaunting.com
  */
 
+// Define minimum supported PHP version
+define('AKAUNTING_PHP', '5.6.4');
+
+// Check PHP version
+if (version_compare(PHP_VERSION, AKAUNTING_PHP, '<')) {
+    die('Your host needs to use PHP ' . AKAUNTING_PHP . ' or higher to run Akaunting');
+}
+
 // Register the auto-loader
 require(__DIR__.'/bootstrap/autoload.php');