What steps can be taken to troubleshoot and resolve a PHP script that results in a blank page after integrating ReCaptcha?

The issue of a blank page after integrating ReCaptcha in a PHP script could be due to errors in the ReCaptcha configuration or the way the script handles the ReCaptcha response. To troubleshoot and resolve this issue, ensure that the ReCaptcha keys are correctly set up, verify that the ReCaptcha response is being processed correctly in the PHP script, and check for any syntax errors or bugs in the code that may be causing the blank page. 

<?php
// Your ReCaptcha keys
$siteKey = 'YOUR_SITE_KEY';
$secretKey = 'YOUR_SECRET_KEY';

// Verify ReCaptcha response
if(isset($_POST['g-recaptcha-response'])) {
    $captcha = $_POST['g-recaptcha-response'];
    $response = file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=$secretKey&response=$captcha");
    $responseKeys = json_decode($response, true);
    
    if(intval($responseKeys["success"]) !== 1) {
        // ReCaptcha verification failed, handle error
        echo "ReCaptcha verification failed";
    } else {
        // ReCaptcha verification successful, continue with your script
        // Add your script logic here
    }
} else {
    // ReCaptcha response not set, handle error
    echo "ReCaptcha response not set";
}
?>

Keywords

PHP ReCaptcha troubleshooting blank page integration

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