string search challenge

src/string_search.php

@@ -0,0 +1,17 @@
+<?php
+function string_search($needle, $haystack){
+
+  if ($needle==false) {
+    return false;
+  } else {
+
+    $position = strpos($haystack, $needle);
+
+    if ($position===0 | $position >0){
+      return "Found '$needle' at index $position";
+    } else {
+        return false;
+    }
+   }
+}
+?>