我需要用 php 表单收集输入（'x_amount'），然后将其发布到生成哈希的页面，然后将其发布到第三方站点。 我不希望客户有一个两步过程，所以这可以用 ajax 和 php 来完成吗？ 这是我到目前为止所拥有的，但它需要被 ajaxized （我认为？
<form action="https://globalgatewaye4.firstdata.com/pay" method="POST">
<?php
$x_login = "xxx-xxx"; // Take from Payment Page ID in Payment Pages interface
$transaction_key = "xxxxxxx"; // Take from Payment Pages configuration interface
$x_currency_code = "CAD"; // Needs to agree with the currency of the payment page
srand(time()); // initialize random generator for x_fp_sequence
$x_fp_sequence = rand(1000, 100000) + 123456;
$x_fp_timestamp = time(); // needs to be in UTC. Make sure webserver produces UTC
// The values that contribute to x_fp_hash
$hmac_data = $x_login . "^" . $x_fp_sequence . "^" . $x_fp_timestamp . "^" . $x_amount . "^" . $x_currency_code;
$x_fp_hash = hash_hmac('MD5', $hmac_data, $transaction_key);
echo ('<label>x_login</label><input name="x_login" type="hidden" value="' . $x_login . '">' );
echo ('<label>x_amount</label><input name="x_amount" type="hidden" value="' . $x_amount . '">' );
echo ('<label>x_fp_sequence</label><input name="x_fp_sequence" type="hidden" value="' . $x_fp_sequence . '">' );
echo ('<label>x_fp_timestamp</label><input name="x_fp_timestamp" type="hidden" value="' . $x_fp_timestamp . '">' );
echo ('<label>x_fp_hash</label><input name="x_fp_hash" type="hidden" value="' . $x_fp_hash . '" size="50">' );
echo ('<label>x_currency_code</label><input name="x_currency_code" type="hidden" value="' . $x_currency_code . '">');
?>
<input type="hidden" name="x_show_form" value="PAYMENT_FORM"/>
<input type="hidden" name="x_test_request" value="FALSE"/>
Enter Payment Amount:<br>
<input type="text" name="x_amount"/>
<input type="submit" value="Pay with Payment Pages"/>
</form>
换句话说，我可以收集x金额，生成哈希值，然后只需单击提交按钮即可将其发布给第三方吗？ 我怎样才能做到这一点？
好的，所以我看到firstdata.com实际上建议你这样做。我设法为你做了一些东西。
您必须使用 ajax，将客户端输入的金额发布到同一页面，对其进行处理并返回表单。仅在处理数据时形成总和位形式。
我为你制作了整个脚本，因为在某些时候弄清楚如何做到这一点会变得令人沮丧。
测试.php
<?php
if(isset($_POST['amount']) && ($_POST['amount'] != '')){
$x_amount = $_POST['amount'];
$x_login = "xxx-xxx"; // Take from Payment Page ID in Payment Pages interface
$transaction_key = "xxxxxxx"; // Take from Payment Pages configuration interface
$x_currency_code = "CAD"; // Needs to agree with the currency of the payment page
srand(time()); // initialize random generator for x_fp_sequence
$x_fp_sequence = rand(1000, 100000) + 123456;
$x_fp_timestamp = time(); // needs to be in UTC. Make sure webserver produces UTC
// The values that contribute to x_fp_hash
$hmac_data = $x_login . "^" . $x_fp_sequence . "^" . $x_fp_timestamp . "^" . $x_amount . "^" . $x_currency_code;
$x_fp_hash = hash_hmac('MD5', $hmac_data, $transaction_key);
$values = array('login' => $x_login, 'amount' => $x_amount, 'sequence' => $x_fp_sequence, 'timestamp' => $x_fp_timestamp, 'hash' => $x_fp_hash, 'currency' => $x_currency_code);
echo json_encode($values);
die;
}
?><html>
<head>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<script type="text/javascript">
var processed = false;
function makeProcessed(type){
processed = type;
}
function prepareForm(){
$('#submitPayment').val('Please wait ...');
var processPayment = $.ajax({
type: 'POST',
url: "test.php",
data: {"amount": $('#x_my_amount').val()},
dataType: 'json',
async: false,
success: function(data) {
$('#x_login').val(data.login);
$('#x_amount').val(data.amount);
$('#x_fp_sequence').val(data.sequence);
$('#x_fp_timestamp').val(data.timestamp);
$('#x_fp_hash').val(data.hash);
$('#x_currency_code').val(data.currency);
if(data.hash){
makeProcessed(true);
}
}
});
return processed;
};
</script>
</head>
<body>
<form action="https://globalgatewaye4.firstdata.com/pay" method="POST" id="payment" onsubmit="return prepareForm();">
<input type="hidden" name="x_show_form" value="PAYMENT_FORM"/>
<input type="hidden" name="x_test_request" value="FALSE"/>
<input name="x_login" id="x_login" type="hidden" value="">
<input name="x_amount" id="x_amount" type="hidden" value="">
<input name="x_fp_sequence" id="x_fp_sequence" type="hidden" value="">
<input name="x_fp_timestamp" id="x_fp_timestamp" type="hidden" value="">
<input name="x_fp_hash" id="x_fp_hash" type="hidden" value="" size="50">
<input name="x_currency_code" id="x_currency_code" type="hidden" value="">
Enter Payment Amount:<br>
<input type="text" name="x_my_amount" id="x_my_amount" />
<input type="submit" id="submitPayment" value="Pay with Payment Pages" />
</form>
</body>
</html>
我认为您可以通过使用"x_amount"字段在模糊事件上创建 ajax 请求来做到这一点。如果生成哈希需要PHP，那么它将如下所示：
形式：
Enter Payment Amount:<br>
<input type="text" name="real_amount" id="real-amount"/>
<input type="hidden" name="x_amount" id="x-amount" />
JavaScript：
$('#real-amount').on('blur', function() {
$.ajax({
....
success: function(data) {
// returned hash should be put in x_amount field here
$('#x-amount').val(data);
}
});
});