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How to use php code

无忌哥哥
无忌哥哥Original
2018-06-27 17:12:222142browse

<?php $name = &#39;Peter Zhu&#39;; ?>
<!DOCTYPE html>
<html>
<?php echo &#39;变量$name的值是: &#39;,$name,&#39;<hr>&#39;; ?>
<head>
<meta charset="UTF-8">
<title><?php echo &#39;如何实现php与html的混写&#39;; ?></title>
</head>
<body>
<!-- php标签之外的代码默认都是html,必须要使用html的注释语法 -->
<?php
//直接将html语句输出到浏览器中显示
# 这是另一种的php单行注释风格
echo &#39;欢迎访问: <a href="http://php.cn">PHP中文网</a>&#39;;
?>
</body>
</html>
<?php 
echo &#39;<hr>原来PHP这么好玩呀~~&#39;;
//因为后面不再有html代码啦,所以这里不封闭也可以

/**
* Summary:
* 1.php code is run on the server side, which is different from javascript, which is run on the client (browser)
* 2.php code is the same as other page elements, It is embedded into the HTML document through tags
* 3. PHP code can be written anywhere in the HTML document
* 4. If there is PHP code in the HTML document, the file extension must be saved as PHP. Otherwise it will not be executed
* 5. If there is only PHP code in the document, please omit the closing tag '?>' to prevent problems when merging with other files
*/

php JavaScript html
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