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HomeBackend DevelopmentPHP Tutorial在第一次学php时遇到的一个小白有关问题,请前辈们指导

在第一次学php时遇到的一个小白问题,请前辈们指导
以前一直用c,偶尔用c++、java,最近因为工作需要开始学php这种脚本语言,在ubuntu12.04上安装了php5、apache2、mysql。用《core php programming》这本书作为入门指导书,按书上的例子,写了下面这个示例脚本
保存为.html文件,然后用firefox打开,结果只显示html代码部分

去网上查了,网友说是因为html文件被交给浏览器直接解释,浏览器不识别php,按网友的的提示,在/etc/apache2/目录下找到httpd.conf文件,该文件是个空文件。我在里面添加了两行如下所示:
AddHandler php5-script .php .html
AddType text/html .php .html
重启后还是无法解释。然后我就想既然此路行不通,那就换个后缀试试,于是新建一个php文件,只写一行

firefox正常执行

但是,当我在这个.php文件里加入html代码时(后缀名还是.php)

firefox就又只显示html部分了

我的理解是按照后缀配置文件应该把.php交给php解释器来执行,即使只显示一部分,也应该是html部分被忽略,php部分被执行,为什么确实反过来的,理解不了,请前辈们指导一下,包括如何在静态html代码中嵌入php并且使其得到执行。
------解决思路----------------------
data turn to date
------解决思路----------------------
哈哈    data 写错了   date

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