linux php和apache配置问题

准备进行linux php开发，因为我机器上的apache,mysql,php系统已经安装过了，并且目前都是最新更新，安装这一步骤省略。

apache路径：/usr/sbin/apachectl

php路径：/var/lib/php

并且配置文件也一应俱全，/etc/httpd/conf/httpd.conf 和usr/php.ini存在，心中大喜。

修改php.ini文件的register_globals = off 改为register_globals = On之后赶紧写了一个静态网页test.html,重启apache服务器：

/usr/sbin/apachectl start之后，运行test.html正常，证明apache和php已经安装完毕，并且运行。

 

下一步，测试下.php动态网页吧，phptest.php其保存在php路径下了/var/www/html/phptest.php,内容很简单:
<?php

 

phpinfo();

 

?>

结果很令人失望：phpinfo()根本没有执行，这是为什么呢？

上网查询，很多人都说重新安装apache和php，但是我觉得这个问题不是源自安装，还是配置文件的原因。

重新审视配置文件之后，发现在php.ini里有这么一段话：


; This directive determines whether or not PHP will recognize code between
; <? and ?> tags as PHP source which should be processed as such. It's been
; recommended for several years that you not use the short tag "short cut" and
; instead to use the full <?php and ?> tag combination. With the wide spread use
; of XML and use of these tags by other languages, the server can become easily
; confused and end up parsing the wrong code in the wrong context. But because
; this short cut has been a feature for such a long time, it's currently still
; supported for backwards compatibility, but we recommend you don't use them.
; Default Value: On
; Development Value: Off
; Production Value: Off
; http://www.php.net/manual/en/ini.core.php#ini.short-open-tag

short_open_tag = Off

 

终于找到真正原因了，short_open_tag这个指令确定了php是否识别<?和?>之间的代码，默认的是On,目前设置的是off,那么就将其修改为：short_open_tag = On，然后再运行phptest.php， php解析正确，运行成功