php similar_text()函数的定义和用法_PHP
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)
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:
<?phpsimilar_text("Hello World","Hello Shanghai",$percent);echo $percent. "%";?>
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