如何通过 PHP 中的回显让变量在 HTML 中输出
How to get variables to output in HTML via an echo in PHP
<?php
$request_uri = $_SERVER['REQUEST_URI'] ;
$path=explode("?",$request_uri);
$pname=basename($path[0]);
if ($pname == "blood-facts-for-kids.html") { $p1 = 'Human Body Facts'; $p1u = 'https://www.factsjustforkids.com/human-body-facts.html'; $p2 = 'Blood Facts'; $p2u = 'https://www.factsjustforkids.com/human-body-facts/blood-facts-for-kids.html'; }
echo '<script type="application/ld+json">{"@context":"https://schema.org/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"{$p1}","item":"{$p1u}"},{"@type":"ListItem","position":2,"name":"{$p2}","item":"{$p2u}"}]}</script>';
?>
我在让变量出现在我的 echo 中时遇到问题。一切正常,如果网页名称正确并且我使用
自行回显变量,则会设置变量
echo "{$p1}, {$p1u}, {$p2}, {$p2u},";
显示了正确的数据。我显然在回显代码中做错了什么。
仅供参考,这是一种动态注入结构化数据的粗略方法。
您可以使用
echo $variable_name //显示变量
如果您想在 HTML 标签中显示它,那么
<p>Your age is <?php echo $age ?>.</p>
我提供 link 以获得更详细的信息
https://www.dummies.com/programming/php/how-to-display-php-variable-values/
要么使用带双引号的 echo ""
:
echo "<script type=\"application/ld+json\">{\"@context\":\"https://schema.org/\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"{$p1}\",\"item\":\"{$p1u}\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"{$p2}\",\"item\":\"{$p2u}\"}]}</script>";
或使用串联:
echo '<script type="application/ld+json">{"@context":"https://schema.org/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"' . $p1 . '","item":"' . $p1u . '"},{"@type":"ListItem","position":2,"name":"' . $p2 . '","item":"' . $p2u . '"}]}</script>';
- 请注意,对于 double-quotes,您需要转义字符串中的任何其他双引号。
<?php
$request_uri = $_SERVER['REQUEST_URI'] ;
$path=explode("?",$request_uri);
$pname=basename($path[0]);
if ($pname == "blood-facts-for-kids.html") { $p1 = 'Human Body Facts'; $p1u = 'https://www.factsjustforkids.com/human-body-facts.html'; $p2 = 'Blood Facts'; $p2u = 'https://www.factsjustforkids.com/human-body-facts/blood-facts-for-kids.html'; }
echo '<script type="application/ld+json">{"@context":"https://schema.org/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"{$p1}","item":"{$p1u}"},{"@type":"ListItem","position":2,"name":"{$p2}","item":"{$p2u}"}]}</script>';
?>
我在让变量出现在我的 echo 中时遇到问题。一切正常,如果网页名称正确并且我使用
自行回显变量,则会设置变量echo "{$p1}, {$p1u}, {$p2}, {$p2u},";
显示了正确的数据。我显然在回显代码中做错了什么。
仅供参考,这是一种动态注入结构化数据的粗略方法。
您可以使用
echo $variable_name //显示变量
如果您想在 HTML 标签中显示它,那么
<p>Your age is <?php echo $age ?>.</p>
我提供 link 以获得更详细的信息 https://www.dummies.com/programming/php/how-to-display-php-variable-values/
要么使用带双引号的 echo ""
:
echo "<script type=\"application/ld+json\">{\"@context\":\"https://schema.org/\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"{$p1}\",\"item\":\"{$p1u}\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"{$p2}\",\"item\":\"{$p2u}\"}]}</script>";
或使用串联:
echo '<script type="application/ld+json">{"@context":"https://schema.org/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"' . $p1 . '","item":"' . $p1u . '"},{"@type":"ListItem","position":2,"name":"' . $p2 . '","item":"' . $p2u . '"}]}</script>';
- 请注意,对于 double-quotes,您需要转义字符串中的任何其他双引号。