Live Demo: Calculate Similarity Between Two Strings in PHP

 
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>Calculate Similarity Between Two Strings in PHP</title>
</head>
<body>
​
<?php
// Sample strings
$str1 = "Hello, John";
$str2 = "Hello, Alexander";
​
// Calculating similarity and print
echo similar_text($str1, $str2);
?>
​
</body>
</html>