Added helpers.php

composer.json

@@ -18,7 +18,10 @@
     "autoload": {
         "psr-4": {
             "Leenooks\\": "src"
-        }
+        },
+        "files": [
+            "src/helpers.php"
+        ]
     },
     "extra": {
         "laravel": {

src/helpers.php

@@ -0,0 +1,15 @@
+<?php
+
+// is_json helper
+if (! function_exists('is_json')) {
+	function is_json($string) {
+		try {
+			json_decode($string);
+
+		} catch (\Exception $e) {
+			return FALSE;
+		}
+
+		return (json_last_error() == JSON_ERROR_NONE);
+	}
+}