如何将 PHP 输出捕获到变量中? [英] How do I capture PHP output into a variable?
问题描述
我正在生成大量 XML，当用户单击表单按钮时，这些 XML 将作为 post 变量传递给 API.我还希望能够事先向用户展示 XML.
代码结构如下:
<xml><morexml><?php尽管(){?><一些生成的xml><?php } ?><lastofthexml><?php ?><预>供用户预览的 XML<表格><input id="xml" value="theXMLagain"/></表单>
我的 XML 是通过一些 while 循环和其他东西生成的.然后它需要显示在两个地方(预览和表单值).
我的问题是.如何在变量或其他任何内容中捕获生成的 XML，以便我只需要生成一次，然后将其打印出来，以便在预览中生成它，然后在表单值中再次生成?
<xml/><?php $xml = ob_get_clean();?><input value="<?php echo $xml ?>"/>͏͏͏͏͏͏I'm generating a ton of XML that is to be passed to an API as a post variable when a user click on a form button. I also want to be able to show the user the XML before hand.
The code is sorta like the following in structure:
<?php
$lots of = "php";
?>
<xml>
<morexml>
<?php
while(){
?>
<somegeneratedxml>
<?php } ?>
<lastofthexml>
<?php ?>
<html>
<pre>
The XML for the user to preview
</pre>
<form>
<input id="xml" value="theXMLagain" />
</form>
</html>
My XML is being generated with a few while loops and stuff. It then needs to be shown in the two places (the preview and the form value).
My question is. How do I capture the generated XML in a variable or whatever so I only have to generate it once and then just print it out as apposed to generating it inside the preview and then again inside the form value?
<?php ob_start(); ?>
<xml/>
<?php $xml = ob_get_clean(); ?>
<input value="<?php echo $xml ?>" />͏͏͏͏͏͏
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