在EOF语句中回显一个数组
[英]Echo An Array inside a EOF statement
问题描述
I'm trying to send an HTML email receipt from a shopping cart purchase but I don't get how to echo the session array within the EOF area. 
我正在尝试从购物车购买中发送HTML电子邮件收据，但我不知道如何在EOF区域内回显会话数组。 php doesn't seem to want to execute here. php似乎不想在这里执行。 Thoughts? 有什么想法吗？
//begin of HTML message
$message = <<<EOF
<html>
<body style="font-family: 'Myriad Pro', 'DejaVu Sans Condensed', Helvetica, Arial, sans-serif;
font-size:10px;"><center>
<table width="750" cellpadding="0" cellspacing="0" class="view-cart" style="text-
align:center;padding:5px;"><tr>
<tr><td>Image</td><td>SKU</td><td>Description</td><td>QTY</td><td>Price</td><td> </td></tr>
<tr>
foreach ($_SESSION["products"] as $cart_itm)
{
echo '<td><img src="'.$cart_itm['image'].'"></td>';
echo '<td>';
echo '<div class="p-code">'.$cart_itm["code"].'</td>';
echo '<td align="left">'.$cart_itm["description"].'</td>';
echo '<td>'.$cart_itm["qty"].'</td>';
echo '<td><div class="p-price">'.$cart_itm["price"].' each</div></td>';
echo '<td></td>';
echo '</tr>';
}
</table>
</center>
</body>
</html>
EOF;
//end of message
$headers = "From: $from\r\n";
$headers .= "Content-type: text/html\r\n";
mail($to, $subject, $message, $headers);
The updated code now looks like this. 现在，更新后的代码如下所示。 I replaced the "$message +=" with "$message .=" and it seems to work fine now. 我用“ $ message。=”替换了“ $ message + =”，现在看来工作正常。 : ：
//begin of HTML message
$message = <<<EOF
<html>
<body style="font-family: 'Myriad Pro', 'DejaVu Sans Condensed', Helvetica, Arial, sans-serif; font-size:10px;"><center>
<table width="750" cellpadding="0" cellspacing="0" class="view-cart" style="text-align:center;padding:5px;">
<tr><td>Image</td><td>SKU</td><td>Description</td><td>QTY</td><td>Price</td><td> </td></tr>
<tr>
EOF;
foreach ($_SESSION["products"] as $cart_itm)
{
$message .= "<td><img src=".$cart_itm['image'].">";
$message .= "</td><td>".$cart_itm['code'];
$message .= "</td><td>".$cart_itm['description'];
$message .= "</td><td>".$cart_itm['qty'];
$message .= "</td><td>".$cart_itm['price'] ;
$message .= "each</td><td></td></tr>";
}
$message2 = <<<EOF
</table>
<hr><table width="750" cellpadding="0" cellspacing="0" class="view-cart"><tr>
<td align="right"><b>Shipping: $ $shipping </b><br><b>Total: $ $total </b></td></tr></table>
</center>
</body>
</html>
EOF;
1 个解决方案
解决方案1
3
What you're doing is creating a string using the heredoc syntax ; 您正在执行的操作是使用Heredoc语法创建字符串； so everything that's after the first newline and before the identifier ( EOF in your case) is considered part of that string, and no code will be executed inside of it besides variables and escape sequences for special characters. 因此，在第一个换行符之后和标识符（在您的情况下为EOF ）之前的所有内容都被视为该字符串的一部分，除了变量和特殊字符的转义序列外，该代码内部不会执行任何代码。
As far as I know there is no solution besides ending the string just before the loop, then replacing all instances of echo with $message += in the loop and finally creating a new string (using heredoc or conventional quotes and escaped newlines) after the loop and appending that new string to the $message . 据我所知，除了在循环之前结束字符串，然后在循环中将所有echo实例替换为$message +=并最终在循环并将新字符串附加到$message 。
Another (bad in my opinion) approach would be to put a placeholder for the loop's contents in the heredoc, then creating a new string that will hold the output of the loop and finally replacing the placeholder with that string. 另一种（我认为不好）的方法是在heredoc中放置循环内容的占位符，然后创建一个新字符串以保存循环的输出，最后用该字符串替换占位符。
Edit: for your updated code, note that the identifier EOF1 should be at the beginning of a new line and be terminated with a semicolon. 编辑：对于更新的代码，请注意，标识符EOF1应该在新行的开头，并以分号终止。
Also, the identifiers aren't supposed to be unique, it's fine to use the same identifier for different strings, no need for EOF1 , 2, etc. 另外，标识符也不应该唯一，对于不同的字符串可以使用相同的标识符，不需要EOF1等。
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