underscore in php functions?

From: Date: Mon, 03 Aug 2009 20:23:43 +0000
Subject: underscore in php functions?
Groups: php.general 
Request: Send a blank email to php-general+get-296240@lists.php.net to get a copy of this message
Hi all, i am a newbie to php an want to learn it. Aftere reading some sample Code an the documetation i have an unanswered question! for example: public function _example(){ } what does the _ mean in that function. Could anyone help me? regards

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