Use shall instead of should for union types

marc1706 · web-flow · commit 9b68b8f00a0a · 2025-04-26T11:22:18.000+02:00
diff --git a/development/development/php/layout_guidelines.rst b/development/development/php/layout_guidelines.rst
@@ -545,7 +545,7 @@ There **SHALL BE** *no* space before the colon and *exactly* one space after the
     }
 
 `Union types <https://wiki.php.net/rfc/union_types_v2>` **SHALL** be used when more than one type is allowed. This does also include nullable types.
-The `null` type **SHOULD** be the last element, other types **SHOULD** follow alphabetical order.
+The `null` type **SHALL** be the last element, other types **SHALL** follow alphabetical order.
 
 **Wrong:**
 

Original file line number	Diff line number	Diff line change
`@@ -545,7 +545,7 @@ There SHALL BE no space before the colon and exactly one space after the`
`545`	`545`	`}`
`546`	`546`
`547`	`547`	`Union types <https://wiki.php.net/rfc/union_types_v2>` SHALL be used when more than one type is allowed. This does also include nullable types.
`548`		-The `null` type SHOULD be the last element, other types SHOULD follow alphabetical order.
	`548`	+The `null` type SHALL be the last element, other types SHALL follow alphabetical order.
`549`	`549`
`550`	`550`	`Wrong:`
`551`	`551`