Set Php show errors

php中的Error等级分成16类,用一个16位的数值表示这16种集合元素.下面是从php.ini中截取的:

; Error Level Constants:
; E_ALL             - All errors and warnings (includes E_STRICT as of PHP 5.4.0)
; E_ERROR           - fatal run-time errors
; E_RECOVERABLE_ERROR  - almost fatal run-time errors
; E_WARNING         - run-time warnings (non-fatal errors)
; E_PARSE           - compile-time parse errors
; E_NOTICE          - run-time notices (these are warnings which often result
;                     from a bug in your code, but it's possible that it was
;                     intentional (e.g., using an uninitialized variable and
;                     relying on the fact it is automatically initialized to an
;                     empty string)
; E_STRICT          - run-time notices, enable to have PHP suggest changes
;                     to your code which will ensure the best interoperability
;                     and forward compatibility of your code
; E_CORE_ERROR      - fatal errors that occur during PHP's initial startup
; E_CORE_WARNING    - warnings (non-fatal errors) that occur during PHP's
;                     initial startup
; E_COMPILE_ERROR   - fatal compile-time errors
; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
; E_USER_ERROR      - user-generated error message
; E_USER_WARNING    - user-generated warning message
; E_USER_NOTICE     - user-generated notice message
; E_DEPRECATED      - warn about code that will not work in future versions
;                     of PHP
; E_USER_DEPRECATED - user-generated deprecation warnings
;
; Common Values:
;   E_ALL (Show all errors, warnings and notices including coding standards.)
;   E_ALL & ~E_NOTICE  (Show all errors, except for notices)
;   E_ALL & ~E_NOTICE & ~E_STRICT  (Show all errors, except for notices and coding standards warnings.)
;   E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR  (Show only errors)

第一种方法:更改php.ini

PHP有好多php.ini文件,在根目录下搜索php.ini,会看到

那么应该配置哪一个呢?那就查看一下(有三种查看方式):

写一个haha.php

<?php phpinfo(); ?>

把它移到/var/www/html下,在浏览器打开之.

或者打开终端,输入php -f  haha.php

或者不建文件,直接php -r  <?php  phpinfo(); ?>

可见,apache启动的时候只调用了/etc/php5/apache/下的设置文件

找到

发现好几个off,所以要打开之.编辑/etc/php5/apache2/php.ini

第二种方法:更改apache

Add the follow words in /etc/apache2/apache2.conf