PHP strip_tags() function

When was the strip_tags() function first int开发者_开发知识库roduced to PHP? Which version?

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It was added on PHP 4.0 beta 2, Aug 9 1999. Information taken from here.

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PHP3 introduced strip_tags to the php language

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Check the strip_tags page:

http://php.net/manual/en/function.strip-tags.php

You can see the earliest comment was in 2001.