Update _php7-string-and-number.rst.inc

Author: alexislefebvre

reference/constraints/_php7-string-and-number.rst.inc

@@ -3,4 +3,4 @@
     When using PHP 7.x, if the value is a string (e.g. ``1234asd``), the validator
     will not trigger an error. In this case, you must also use the
     :doc:`Type constraint </reference/constraints/Type>` with
-    ``numeric``, ``integer`, etc. to reject strings.
+    ``numeric``, ``integer``, etc. to reject strings.