Fix issue with deprecation error in PHP 8.1 (#46)

GenieTim · web-flow · commit 758b829f08ad · 2022-04-10T12:50:15.000+02:00
Fixes #45
diff --git a/src/ZipCodeValidator/Constraints/ZipCodeValidator.php b/src/ZipCodeValidator/Constraints/ZipCodeValidator.php
@@ -228,7 +228,7 @@ public function validate($value, Constraint $constraint)
             return;
         }
 
-        if (!($iso = strtoupper($constraint->iso))) {
+        if (null === $constraint->iso || !($iso = strtoupper($constraint->iso))) {
             // if iso code is not specified, try to fetch it via getter from the object, which is currently validated
             $object = $this->context->getObject();
             $getter = $constraint->getter;

Original file line number	Diff line number	Diff line change
`@@ -228,7 +228,7 @@ public function validate($value, Constraint $constraint)`
`228`	`228`	`return;`
`229`	`229`	`}`
`230`	`230`
`231`		`- if (!($iso = strtoupper($constraint->iso))) {`
	`231`	`+ if (null === $constraint->iso \|\| !($iso = strtoupper($constraint->iso))) {`
`232`	`232`	`// if iso code is not specified, try to fetch it via getter from the object, which is currently validated`
`233`	`233`	`$object = $this->context->getObject();`
`234`	`234`	`$getter = $constraint->getter;`