How can inconsistencies in the length of private and public keys affect the functionality of reCaptcha in PHP scripts?

Inconsistencies in the length of private and public keys can affect the functionality of reCaptcha in PHP scripts by causing authentication failures. To solve this issue, ensure that both the private and public keys used in the reCaptcha configuration are of the correct length.

// Correcting the length of private and public keys for reCaptcha
$privateKey = "your_private_key_here";
$publicKey = "your_public_key_here";

// Ensure the keys are of the correct length
if(strlen($privateKey) != 64 || strlen($publicKey) != 40) {
    die("Error: Invalid length for keys");
}

// Your reCaptcha verification code here