php - PHP 向 Paypal 回显一个值（加密）

Question

我正在创建一个自定义结帐页面，然后前往贝宝网站进行付款，我已使用此成功将正确的信息发送到贝宝：

<form action="https://www.paypal.com/cgi-bin/webscr" method="post" target="_blank">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="[e-mail]">
<input type="hidden" name="currency_code" value="AUD">
<?php $cart = $_SESSION['cart']; ?>
<?php $total = 0;
$count = 0;
foreach ($cart as $key => $value) {
$navcartsql = "SELECT * FROM products WHERE id=$key";
$navcartres = mysqli_query($connection, $navcartsql);
$navcartr = mysqli_fetch_assoc($navcartres); ?>
<?php if ($value['Extras']==""){
			$Extra =  0;} else{$Extra = 2;} 
		if ($value['ExtrasB']==""){
		   $Extri =  0;} else{$Extri = 2;} 
		if ($value['Sauce']=="" or $value['Sauce']=="No-Sauce"){
			$Extra1 = 0;} else{$Extra1 = 0.5;} 
		if ($value['Addons']==""){
			$Addi = 0;} else{$Addi = 1;} 
		if ($value['AddonsB']==""){
		$Addo = 0;} else{$Addo = 1;} 
		 $subtotal = ($Extri+$Addi+$Addo+$Extra1+$Extra+$navcartr['price']); ?>
<?php $count++; ?>
<input type="hidden" name="item_name_<?php echo $count;?>" value="<?php echo $navcartr['name']; ?>">
<input type="hidden" name="amount_<?php echo $count;?>" value="<?php echo $subtotal;?>">
<input type="hidden" name="quantity_<?php echo $count;?>" value="<?php echo $value['quantity']; ?>">
<input type="hidden" name="on0_<?php echo $count;?>" value="Sauce">
<input type="hidden" name="os0_<?php echo $count;?>" value="<?php echo $value['Sauce']; ?>">
<input type="hidden" name="on1_<?php echo $count;?>" value="Extras">
<input type="hidden" name="os1_<?php echo $count;?>" value="<?php echo $value['Extras']; echo ", "; ?><?php echo $value['ExtrasB']; ?>">
<input type="hidden" name="on2_<?php echo $count;?>" value="Addon's">
<input type="hidden" name="os2_<?php echo $count;?>" value="<?php echo $value['Addons']; echo ", "; echo $value['AddonsB']; ?>">
<?php } ?>

<button type="submit" class="button btn-lg">Pay Now: Paypal/Card</button>
</form>

它工作得很好......唯一的问题是，我不知道如何对其进行加密，所以人们不能只是 Ctrl-Shift-I 并将其更改为 $0。我知道如何创建一个加密的 PayPal 按钮，但只有一个固定的价格、名称等......所以如果有人能指出我正确的方向，最好的方法是或者可以帮助我，那就太好了。谢谢你的帮助 ：）

标签： phphtmlformsencryptionpaypal