回答編集履歴
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引用部分を修正
answer
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@@ -1,6 +1,10 @@
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[無名関数](http://php.net/manual/ja/functions.anonymous.php)のサンプルにある通り呼び出しかたが違うようです。
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```PHP
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$obj->func = function(){
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echo "hello";
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};
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//$obj->func(); // doesn't work! php tries to match an instance method called "func" that is not defined in the original class' signature
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// you have to do this instead:
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