iamaamir/post.php

## post.php
<?php

if (isset($_POST['email'])) {
  $email = $_POST['email'];
    $template = strtr("{\"email_address\": \"%email%\",\"status\": \"subscribed\"}",
            array('%email%' => $email));


        $curl = curl_init();

        curl_setopt_array($curl, array(
          CURLOPT_URL => "https://us20.api.mailchimp.com/3.0/lists/<list_id_goes_here>/members",
          CURLOPT_RETURNTRANSFER => true,
          CURLOPT_ENCODING => "",
          CURLOPT_MAXREDIRS => 10,
          CURLOPT_TIMEOUT => 30,
          CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
          CURLOPT_CUSTOMREQUEST => "POST",
          CURLOPT_POSTFIELDS => $template,
          CURLOPT_HTTPHEADER => array(
            "Authorization: apikey xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
          ),
        ));

        $response = curl_exec($curl);
        $err = curl_error($curl);

        curl_close($curl);

        if ($err) {
          echo "Something went wrong";
        } else {
          $res = json_decode($response, true);
          if ($res['status'] === 400) {

              if (strpos($res['detail'], "already") !== false) {
                echo "Emai Already Exist";
              }
              else{
                echo $res['detail'];
              }
          }else if($res['email_address'] === $email){
            echo "Thank you for subscription";
          }
        }


}else{
  echo "invalid Request";
}

?>

## test.html
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>testing php post method</title>
</head>

<body>
    <form id="form">
        <input type="text">
        <input type="submit" value="send">
    </form>
</body>

<script>
document.getElementById("form").addEventListener("submit", function(e) {
    e.preventDefault();
    fetch("post.php", {
            method: "POST",
            body: new URLSearchParams("email=" + this.elements[0].value)
        })
        .then(res => res.text())
        .then(res => console.log(res));

    return false;
});
</script>

</html>
	<?php

	if (isset($_POST['email'])) {
	$email = $_POST['email'];
	$template = strtr("{\"email_address\": \"%email%\",\"status\": \"subscribed\"}",
	array('%email%' => $email));


	$curl = curl_init();

	curl_setopt_array($curl, array(
	CURLOPT_URL => "https://us20.api.mailchimp.com/3.0/lists/<list_id_goes_here>/members",
	CURLOPT_RETURNTRANSFER => true,
	CURLOPT_ENCODING => "",
	CURLOPT_MAXREDIRS => 10,
	CURLOPT_TIMEOUT => 30,
	CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
	CURLOPT_CUSTOMREQUEST => "POST",
	CURLOPT_POSTFIELDS => $template,
	CURLOPT_HTTPHEADER => array(
	"Authorization: apikey xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
	),
	));

	$response = curl_exec($curl);
	$err = curl_error($curl);

	curl_close($curl);

	if ($err) {
	echo "Something went wrong";
	} else {
	$res = json_decode($response, true);
	if ($res['status'] === 400) {

	if (strpos($res['detail'], "already") !== false) {
	echo "Emai Already Exist";
	}
	else{
	echo $res['detail'];
	}
	}else if($res['email_address'] === $email){
	echo "Thank you for subscription";
	}
	}




	}else{
	echo "invalid Request";
	}

	?>
	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<title>testing php post method</title>
	</head>

	<body>
	<form id="form">
	<input type="text">
	<input type="submit" value="send">
	</form>
	</body>

	<script>
	document.getElementById("form").addEventListener("submit", function(e) {
	e.preventDefault();
	fetch("post.php", {
	method: "POST",
	body: new URLSearchParams("email=" + this.elements[0].value)
	})
	.then(res => res.text())
	.then(res => console.log(res));

	return false;
	});
	</script>

	</html>