通过余弦定理+分词计算文本相似度PHP版

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参考：

• http://www.ruanyifeng.com/blog/2013/03/cosine_similarity.html
• http://my.oschina.net/BreathL/blog/42477

Use:

<?php

$obj = new TextSimilarity ($text1, $text2);
echo $obj->run();