谷歌隱形Recaptch整合PHP

Question

1. 登錄與您的谷歌帳戶

2.Visit谷歌的驗證碼鏈接。

3.然後按照代碼集成的鏈接，遵循客戶端和服務器端驗證的代碼。 https://developers.google.com/recaptcha/docs/invisible

4.增加或創建的ReCaptcha後，到這裏提前設置，一旦降低安全級別，https://www.google.com/recaptcha/admin#list

<!-- 
i.stack.imgur.com slash NqyVT.png 
6aZNw.png 
n5gfN.png 

Button  HTML 
    <div id='recaptcha' class="g-recaptcha" 
     data-sitekey="put the key here" 
     data-callback="onSubmit" 
     data-size="invisible" 
     data-callback="callback"></div> 
    <button id='btnsubmit' class="c-button--primary">Submit</button> 
//Apply the exact script from document 

    //PHP Validation 
    if($_POST['g-recaptcha-response'] != ''){ 
      $post_data = http_build_query(['secret'=>'put the secret key here', 'response'=>$_POST['g-recaptcha-response'] ]); 
      $ch = curl_init(); 
      curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); 
      curl_setopt($ch, CURLOPT_URL, 'https://www.google.com/recaptcha/api/siteverify'); 
      curl_setopt($ch, CURLOPT_POST, 1);  
      curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data); 
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  
      // Send the request 
      $result = json_decode(curl_exec($ch), true); 
      // Free up the resources $curl is using 
      curl_close($ch); 
      //print_r($result);exit(); 
      $hostname = strtolower($result['hostname']); 
      //echo $hostname.' - '.$result['success'];exit(); 
      if($result['success'] == 1 && ($hostname == 'www.yousiteurl.com')){ 
       //Write here actual execution code for email or data submit 
      } 
    } 
    --> 

Answer 1

<script> 
    function onSubmit(token) { 
    alert('thanks ' + document.getElementById('field').value); 
    } 

    function validate(event) { 
    event.preventDefault(); 
    if (!document.getElementById('field').value) { 
     alert("You must add text to the required field"); 
    } else { 
     grecaptcha.execute(); 
    } 
    } 

    function onload() { 
    var element = document.getElementById('submit'); 
    element.onclick = validate; 
    } 
</script> 
Before body tag close 
<script>onload();</script>