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Check if Sec-GPC value exists in HTTP request header in WordPress

P粉930534280 2023-08-31 13:34:53

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<p>如何检测 HTTP 请求标头中是否存在“Sec-GPC:1”？</p> <pre class="brush:php;toolbar:false;"><?PHP function detect_gpc_signal() { if (isset($_GET['Sec-Gpc'])) { echo 'GPC signal detected in GET data'; } elseif (isset($_POST['Sec-Gpc'])) { echo 'GPC signal detected in POST data'; } elseif (isset($_COOKIE['Sec-Gpc'])) { echo 'GPC signal detected in COOKIE data'; } elseif (isset($_SERVER['Sec-Gpc'])) { echo 'GPC signal detected in SERVER data'; } else { echo 'No GPC signal detected'; } } add_action('wp_footer', 'detect_gpc_signal'); ?></pre></p>

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P粉3114649352023-09-01 11:03:53 1 floor

Thanks for suggesting getallheaders(). With your help I found two ways, with and without Javascript.

/* Add GPC Banner to WP Header */
function display_gpc_signal_banner() {
echo ' Global Privacy Signal Detected';
}
add_action('wp_head', 'display_gpc_signal_banner');

// Detect GPC Signal with Javascript
function detect_gpc_signal_js() {
?>
  
  
renew
The original function will work when HTTP_ is added to the value. 
if (isset($_GET['HTTP_SEC_GPC'])) {
  echo 'GPC signal detected in GET data';
  } elseif (isset($_POST['HTTP_SEC_GPC'])) {
  echo 'GPC signal detected in POST data';
  } elseif (isset($_COOKIE['HTTP_SEC_GPC'])) {
  echo 'GPC signal detected in COOKIE data';
  } elseif (isset($_SERVER['HTTP_SEC_GPC'])) {
  echo 'GPC signal detected in SERVER data';
  } else {
   echo 'No GPC signal detected';
  }


                            
                                 
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