PHP模块已加载警告 [英] PHP module is already loaded warning

问题描述

仅注意到，在CLI上执行时，PHP会引发警告:

Just noticed, that PHP throws warnings, when executed on the CLI:

php模块已经加载

$ php -v
PHP Warning:  Module 'PDO' already loaded in Unknown on line 0
PHP Warning:  Module 'calendar' already loaded in Unknown on line 0
PHP Warning:  Module 'ctype' already loaded in Unknown on line 0
PHP Warning:  Module 'exif' already loaded in Unknown on line 0
PHP Warning:  Module 'fileinfo' already loaded in Unknown on line 0
PHP Warning:  Module 'ftp' already loaded in Unknown on line 0
PHP Warning:  Module 'gettext' already loaded in Unknown on line 0
PHP Warning:  Module 'iconv' already loaded in Unknown on line 0
PHP Warning:  Module 'Phar' already loaded in Unknown on line 0
PHP Warning:  Module 'posix' already loaded in Unknown on line 0
PHP Warning:  Module 'shmop' already loaded in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/sockets.so' - /usr/lib/php/20151012/sockets.so: undefined symbol: php_network_gethostbyname in Unknown on line 0
PHP Warning:  Module 'sysvmsg' already loaded in Unknown on line 0
PHP Warning:  Module 'sysvsem' already loaded in Unknown on line 0
PHP Warning:  Module 'sysvshm' already loaded in Unknown on line 0
PHP Warning:  Module 'tokenizer' already loaded in Unknown on line 0
PHP 7.0.3-5+deb.sury.org~trusty+1 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2016, by Zend Technologies
    with Xdebug v2.4.0RC4, Copyright (c) 2002-2016, by Derick Rethans

我知道，如何防止它们发生-只需从/etc/php/7.0/cli/conf.d/{extname}中删除 extension = {extname} .so .ini 文件.但是:

I know, how to prevent them -- simply remove extension={extname}.so from the /etc/php/7.0/cli/conf.d/{extname}.ini files. But:

在INI文件中删除此行是一种解决方案，还是一种避免警告消息的解决方法?会因此产生副作用吗?为什么会发生/到底是什么原因造成的?

推荐答案

您可能已在php.ini文件中两次加载了所示的扩展名.

You have probably loaded the shown extensions twice in your php.ini files.

您可以搜索/etc/php/7.0文件夹，在该文件夹的子文件夹中可以找到php.ini文件，

You can search the folder /etc/php/7.0 where you will find php.ini files in its subfolders, most probably in :

• /etc/php/7.0/cli/
• /etc/php/7.0/apache2/

如果您在这些php.ini文件中两次看到某些 extension = something.so 重复两次，则可以将其从一个中删除，或者如果警告仍然将其从两个中删除.

If you see some extension=something.so repeated twice in these php.ini files you can remove it from one or if still the warning shows remove from both.

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