Question

How to calculate the similarity between two strings in PHP

Answer 1

$s1 = "c programming";
$s2 = "php programming";
$common = similar_text($s1, $s2, $percent);
echo $common . " characters in common<br>";
printf("that are %.2f%% of the string", $percent);




/*
run:
    
12 characters in common
that are 85.71% of the string 
      
*/

 

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Answer 2

$s1 = "PHP";
$s2 = "PHP";
$s3 = "Php";

$common = similar_text($s1, $s2, $percent);
echo $common . " characters in common<br>";
printf("that are %.2f%% of the string<br /><br />", $percent);
 
$common = similar_text($s1, $s3, $percent);
echo $common . " characters in common<br>";
printf("that are %.2f%% of the string<br />", $percent);



/*
run:
    
3 characters in common
that are 100.00% of the string

1 characters in common
that are 33.33% of the string
      
*/

 

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