PHP similar_text() Function

Example

Calculate the similarity between two strings and return the matching characters:

<?php
echo similar_text("Hello World","Hello Peter");
?>

Definition and Usage

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

It can also calculate the similarity of the two strings in percent.

Note: The levenshtein() function is faster than the similar_text() function. However, the similar_text() function will give you a more accurate result with less modifications needed.

Syntax

similar_text( string1,string2,percent)

Parameter Values

Parameter	Description
string1	Required. Specifies the first string to be compared
string2	Required. Specifies the second string to be compared
percent	Optional. Specifies a variable name for storing the similarity in percent

Technical Details

Return Value:	Returns the number of matching characters of two strings
PHP Version:	4+

More Examples

Example

Calculate the similarity between two strings in percent:

<?php
similar_text("Hello World","Hello Peter",$percent);
echo $percent;
?>

Try it Yourself »

❮ PHP String Reference