Question

How to get number of characters that two strings have in common in PHP

Answer 1

$s1 = "abcdvopm";
$s2 = "AbCfwdvz";

$common = similar_text($s1, $s2, $percent);

echo $common . " characters in common" . "\n";

printf("that is %.2f%% of the string", $percent);
 
 
 
/*
run:
     
3 characters in common
that is 37.50% of the string
       
*/

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