有没有办法在 PHP 函数中返回 HTML？（不将返回值构建为字符串）
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Is there any way to return HTML in a PHP function? (without building the return value as a string)
提问by seanyboy
I have a PHP function that I'm using to output a standard block of HTML. It currently looks like this:
我有一个 PHP 函数，用于输出标准的 HTML 块。它目前看起来像这样：
<?php function TestBlockHTML ($replStr) { ?>
<html>
<body><h1> <?php echo ($replStr) ?> </h1>
</html>
<?php } ?>
I want to return (rather than echo) the HTML inside the function. Is there any way to do this without building up the HTML (above) in a string?
我想返回（而不是回显）函数内的 HTML。有什么方法可以不用在字符串中构建 HTML（上面）？
回答by Paul Dixon
You can use a heredoc, which supports variable interpolation, making it look fairly neat:
您可以使用支持变量插值的heredoc，使其看起来相当整洁：
function TestBlockHTML ($replStr) {
return <<<HTML
<html>
<body><h1>{$replStr}</h1>
</body>
</html>
HTML;
}
Pay close attention to the warning in the manual though - the closing line must not contain any whitespace, so can't be indented.
但是请密切注意手册中的警告 - 结束行不能包含任何空格，因此不能缩进。
回答by Konrad Rudolph
回答by Lorien Brune
This may be a sketchy solution, and I'd appreciate anybody pointing out whether this is a bad idea, since it's not a standard use of functions. I've had some success getting HTML out of a PHP function without building the return value as a string with the following:
这可能是一个粗略的解决方案，我很感激有人指出这是否是一个坏主意，因为它不是函数的标准使用。我已经从 PHP 函数中获取 HTML 取得了一些成功，而无需将返回值构建为具有以下内容的字符串：
function noStrings() {
echo ''?>
<div>[Whatever HTML you want]</div>
<?php;
}
The just 'call' the function:
只是“调用”函数：
noStrings();
And it will output:
它会输出：
<div>[Whatever HTML you want]</div>
Using this method, you can also define PHP variables within the function and echo them out inside the HTML.
使用此方法，您还可以在函数内定义 PHP 变量并将它们在 HTML 内回显。
回答by Rob
Create a template file and use a template engine to read/update the file. It will increase your code's maintainability in the future as well as separate display from logic.
创建模板文件并使用模板引擎读取/更新文件。它将增加您的代码在未来的可维护性以及将显示与逻辑分开。
An example using Smarty:
一个使用Smarty的例子：
Template File
模板文件
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head><title>{$title}</title></head>
<body>{$string}</body>
</html>
Code
代码
function TestBlockHTML(){
$smarty = new Smarty();
$smarty->assign('title', 'My Title');
$smarty->assign('string', $replStr);
return $smarty->render('template.tpl');
}
回答by Cayde 6
Another way to do is is to use file_get_contents()and have a template HTML page
另一种方法是使用file_get_contents()并拥有一个模板 HTML 页面
TEMPLATE PAGE
模板页
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head><title>$title</title></head>
<body>$content</body>
</html>
PHP Function
PHP函数
function YOURFUNCTIONNAME($url){
$html_string = file_get_contents($url);
return $html_string;
}
回答by Wahid Lahouiter
Or you can just use this:
或者你可以只使用这个：
<?
function TestHtml() {
# PUT HERE YOU PHP CODE
?>
<!-- HTML HERE -->
<? } ?>
to get content from this function , use this :
要从此函数获取内容，请使用：
<?= file_get_contents(TestHtml()); ?>
That's it :)
就是这样 ：）
回答by marrion luaka
If you don't want to have to rely on a third party tool you can use this technique:
如果您不想依赖第三方工具，则可以使用此技术：
function TestBlockHTML($replStr){
$template =
'<html>
<body>
<h1>$str</h1>
</body>
</html>';
return strtr($template, array( '$str' => $replStr));
}
