Check if strings are x% equal

Question

I want to compare three strings:

\"a text string\" //target string
\"a kind of similar text string\"
\"the cow jumps over the moon\"

And se

Answer 1

The function you're looking for is similar_text.

It takes an optional 3rd parameter (passed by reference) where the percentage difference is placed.

In your situation, the following should do:

// Returns true if $str1 is at least $pct similar to $str2, otherwise false.
function compare($str1, $str2, $pct)
{
    $p = 0;
    similar_text($str1, $str2, $p);

    return ($p >= $pct);
}

Answer 2

In PHP, there is the function similar_text. As for JavaScript, there's the PHP.js project, which re-implements PHP functions in JavaScript. They have an implementation of similar_text you can use.

The JavaScript implementation doesn't support the percent parameter, it seems.