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- class NSNode {
- function insertAfter(NSNode $node) {
- ...
- }
- }
- $myNode->insertAfter(null);
- function(NSNode $node = null) {
- // stuff....
- }
- $obj->insertAfter(); // no error
- $obj->insertAfter(new NSNode); // no error
- $obj->insertAfter($somevar); // error expected NSNode
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