php similar_text

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

Definition and usage

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.

Syntax

similar_text(string1,string2,percent)

Parameters	Description
string1	Required. Specifies the first string to compare.
string2	Required. Specifies the second string to be compared.
percent	optional. Specifies the variable name used to store percent similarity.

Technical details

Return value:	Returns the number of matching characters in the two strings.
PHP version:	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 variable
• PHP magic variables
• php namespace

The above introduces php similar_text, including similar and text content. I hope it will be helpful to friends who are interested in PHP tutorials.