php比较相似字符串的方法

本文实例讲述了php比较相似字符串的方法。分享给大家供大家参考。具体分析如下：

这里通过php的similar_text函数比较两个字符串的相似性。

    $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%
    */

希望本文所述对大家的php程序设计有所帮助。