Add test

Author: VincentLanglet

tests/PHPStan/Analyser/nsrt/bug-9575.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Bug9575;
+
+use SimpleXMLElement;
+use function PHPStan\Testing\assertType;
+
+$string = <<<XML
+<a>
+ <foo name="one" game="lonely">1</foo>
+</a>
+XML;
+
+$xml = new SimpleXMLElement($string);
+foreach($xml->foo[0]->attributes() as $a => $b) {
+	echo $a,'="',$b,"\"\n";
+}
+
+assertType('(SimpleXMLElement|null)', $xml->foo);
+assertType('(SimpleXMLElement|null)', $xml->foo[0]);
+assertType('(SimpleXMLElement|null)', $xml->foobar);
+assertType('(SimpleXMLElement|null)', $xml->foo->attributes());