php similar_text(), phpsimilar_text_PHP tutorial

php similar_text(), phpsimilar_text

php similar_text() function calculates and compares the similarity of two strings. This article introduces the basic use of php similar_text() function to coders. Interested programmers can refer to the methods and basic usage examples.

Definition and usage

The similar_text() function calculates the similarity of two strings.

This function can also calculate the percentage similarity of two strings.

Note: levenshtein() function is faster than similar_text() function. However, the similar_text() function provides more accurate results with fewer modifications required.

Grammar

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。

Technical details

返回值：	返回两个字符串的匹配字符的数目。
PHP 版本：	4

Example

Calculate the percentage similarity between two strings:

<?<span>php
</span><span>similar_text</span>("Hello World","Hello Shanghai",<span>$percent</span><span>);
</span><span>echo</span> <span>$percent</span>. "%"<span>;
</span>?>

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php related learning:

• php operator
• php expression
• PHP loop control
• PHP process control
• php array
• php function
• php global variables
• PHP Magic Variables
• php namespace

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