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php similar_text()函数的定义和用法_PHP

May 27, 2016 am 10:19 AM
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php similar_text() 函数计算比较两个字符串的相似度,本文章向码农介绍php similar_text() 函数的基本使用方法和基本使用实例,感兴趣的码农可以参考一下。

定义和用法

similar_text() 函数计算两个字符串的相似度。

该函数也能计算两个字符串的百分比相似度。

注释:levenshtein() 函数比 similar_text() 函数更快。不过,similar_text() 函数通过更少的必需修改次数提供更精确的结果。

 

语法 

similar_text(string1,string2,percent)
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参数 描述
string1 必需。规定要比较的第一个字符串。
string2 必需。规定要比较的第二个字符串。
percent 可选。规定供存储百分比相似度的变量名。

技术细节
返回值: 返回两个字符串的匹配字符的数目。
PHP 版本: 4+

实例

计算两个字符串之间的百分比相似度:

<&#63;phpsimilar_text("Hello World","Hello Shanghai",$percent);echo $percent. "%";&#63;>
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