相关疑难解决方法(0)

levenshteinPHP中的函数适用于最大长度为255的字符串.在PHP中计算句子相似度得分的好方法是什么.

基本上我有一个句子数据库,我想找到近似重复. similar_text功能不给我预期的结果.对我来说,检测类似句子的最简单方法是:

$ss="Jack is a very nice boy, isn't he?";
$pp="jack is a very nice boy is he";

$ss=strtolower($ss);  // convert to lower case as we dont care about case
$pp=strtolower($pp);

$score=similar_text($ss, $pp);
echo "$score %\n";  // Outputs just 29 %

$score=levenshtein ( $ss, $pp );
echo "$score\n";  // Outputs '5', which indicates they are very similar. But, it does not work for more than 255 chars :(