为什么这两个字符串在PHP中不一样？

Question

这是我的代码：

$city = $_GET['city'];
$cityfinal = htmlentities($city, ENT_QUOTES | ENT_IGNORE, "UTF-8");

similar_text($cityfinal, "CITY OF BIÑAN", $percent); 

echo "Differnce between " . $cityfinal . " and CITY OF BIÑAN is " . $percent; 

结果：

  

CITY OFBIÑAN与CITY OFBIÑAN的区别是72.7272727273

Answer 1

您的比较字符串未转换为htmlentities，因此它会给您带来差异。尝试转换并检查。

此处特殊字符BIÑAN以$_GET['city']字符串编码，但保留给定的比较字符串。

$city = $_GET['city'];
$checkcity ="CITY OF BIÑAN";
$cityfinal = htmlentities($city, ENT_QUOTES | ENT_IGNORE, "UTF-8");
$cityCheckwith = htmlentities($checkcity, ENT_QUOTES | ENT_IGNORE, "UTF-8");

similar_text($cityfinal, $cityCheckwith, $percent); 

echo "Differnce between " . $cityfinal . " and CITY OF BIÑAN is " . $percent; 

<强>输出

  

CITY OF BIAN和CITYOFBIÑAN之间的差异是100

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