Don't attempt to lowercase a NULL

jamieburchell · chriskacerguis · commit f386f4e0013d · 2022-02-24T18:02:52.000Z
Fixes PHP 8.1 deprecation notice when trying to `strtolower` `NULL`
diff --git a/src/RestController.php b/src/RestController.php
@@ -834,7 +834,9 @@ protected function _detect_method()
                 $method = $this->input->server('HTTP_X_HTTP_METHOD_OVERRIDE');
             }
 
-            $method = strtolower($method);
+            if ($method !== null) {
+                $method = strtolower($method);
+            }
         }
 
         if (empty($method)) {

Original file line number	Diff line number	Diff line change
`@@ -834,7 +834,9 @@ protected function _detect_method()`
`834`	`834`	`$method = $this->input->server('HTTP_X_HTTP_METHOD_OVERRIDE');`
`835`	`835`	`}`
`836`	`836`
`837`		`- $method = strtolower($method);`
	`837`	`+ if ($method !== null) {`
	`838`	`+ $method = strtolower($method);`
	`839`	`+ }`
`838`	`840`	`}`
`839`	`841`
`840`	`842`	`if (empty($method)) {`