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011-php第一节-环境、认识
冇忉丼
Original
537 people have browsed it

1. 环境搭建起来

搭建步骤如下


代码如下:

  1. <?php
  2. echo '加油';
  3. echo '<br/>';
  4. echo 1+1;
  5. ?>
  6. <!doctype html>
  7. <html lang="en">
  8. <head>
  9. <meta charset="UTF-8">
  10. <meta name="viewport"
  11. content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  12. <meta http-equiv="X-UA-Compatible" content="ie=edge">
  13. <title>Document</title>
  14. </head>
  15. <body>
  16. <h2 style="color: red">国产好剧</h2>
  17. <ul>
  18. <li><?php echo '少年派'?></li>
  19. <li>带着爸爸去留学</li>
  20. <li>亲爱的,热爱的</li>
  21. </ul>
  22. </body>
  23. </html>
  24. <?php
  25. $a= 'Hello PHP.';
  26. echo $a;
  27. ?>
  28. <!--变量名规则,两个单词中间用下滑线或者小驼峰或大驼峰(首字母大写)命名法-->

2. 写下对php的理解

php(Hypertext Preprocessor)即超文本预处理器,是一种解释性语言。诞生于1994年,衍生自Perl,是面向对象的、高性能的、可扩展的、低成本的、跨平台的、易学习的脚本语言。
php是由php解释器(如zend引擎)解释执行,php运行原理图如下:

php文件里可以包括html,css,php,js等代码及纯文本,

附:

Correction status:qualified

Teacher's comments:完成的不错
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