经测试代码如下：
/*** 通过 similar_text函数比较两个字符串的相似性** @param* @arrange (512.笔记) jb51.cc**/$word2compare = "stupid";$words = array('stupid','stu and pid','hello','foobar','stpid','upid','stuuupid','sstuuupiiid',);while(list($id,$str) = each($words)){similar_text($str,$word2compare,$percent);print "Comparing '$word2compare' with '$str': ";print round($percent) . "%\n";}/*Results:Comparing 'stupid' with 'stupid': 100%Comparing 'stupid' with 'stu and pid': 71%Comparing 'stupid' with 'hello': 0%Comparing 'stupid' with 'foobar': 0%Comparing 'stupid' with 'stpid': 91%Comparing 'stupid' with 'upid': 80%Comparing 'stupid' with 'stuuupid': 86%Comparing 'stupid' with 'sstuuupiiid': 71%*//*** 代码来自编程之家 jb51.cc（jb51.cc） ***/
