html 中的 php 变量别无他法: <?php echo $var;?> [英] php variable in html no other way than: <?php echo $var; ?>

问题描述

我在混合 HTML 和 PHP 中做了很多工作，大多数时候我只想要包含一些 PHP 变量的纯 HTML，所以我的代码如下所示:

I work a lot in mixed HTML and PHP and most time I just want solid HTML with a few PHP variables in it so my code look like this:

<tr><td> <input type="hidden" name="type" value="<?php echo $var; ?>" ></td></tr>

这很丑陋.是不是有更短的，更像下面这样的?

Which is quite ugly. Isn't there something shorter, more like the following?

<tr><td> <input type="hidden" name="type" value="$$var" ></td></tr>

这是可能的，但你会被 "" 卡住(你必须用 '' 替换它们)并且布局消失了

This is possible to but you get stuck with the "" (you have to replace them all with '') and the layout is gone

echo "<tr><td> <input type="hidden" name="type" value="$var" ></td></tr>"

还有什么更好的吗?

推荐答案

您的代码有短标签版本，现在完全可以接受使用，尽管有过时的建议:

There's the short tag version of your code, which is now completely acceptable to use despite antiquated recommendations otherwise:

<input type="hidden" name="type" value="<?= $var ?>" >

其中(PHP 5.4 之前)需要在您的 php 配置中启用短标签.它的功能与您键入的代码完全相同；这些行在其内部实现中实际上完全相同:

which (prior to PHP 5.4) requires short tags be enabled in your php configuration. It functions exactly as the code you typed; these lines are literally identical in their internal implementation:

<?= $var1, $var2 ?>
<?php echo $var1, $var2 ?>

关于内置解决方案.有很多 3rd 方模板库可以更轻松地将数据嵌入到您的输出中，smarty 是个好地方开始.

That's about it for built-in solutions. There are plenty of 3rd party template libraries that make it easier to embed data in your output, smarty is a good place to start.

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