PHP7 CLI 尝试加载 xdebug 两次 - “无法加载 Xdebug - 它已经加载”

在将 Ubuntu 从 14.04 升级到 16.04 之后，PHP CLI 开始抱怨 xdebug：

$ php -v
Cannot load Xdebug - it was already loaded
PHP 7.0.13-0ubuntu0.16.04.1 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.13-0ubuntu0.16.04.1, Copyright (c) 1999-2016, by Zend Technologies
    with Xdebug v2.4.0, Copyright (c) 2002-2016, by Derick Rethans

只有一个.ini文件：

$ ls -la /etc/php/7.0/cli/conf.d/ | grep xdebug
lrwxrwxrwx 1 root root   38 Jan 19 11:41 20-xdebug.ini -> /etc/php/7.0/mods-available/xdebug.ini

并且它在此输出中仅引用一次：php -i

$ php -i | grep -i configuration
Cannot load Xdebug - it was already loaded
Configuration File (php.ini) Path => /etc/php/7.0/cli
Loaded Configuration File => /etc/php/7.0/cli/php.ini
Configuration

而且整个目录中只有一个对xdebug的引用（所以它没有被包含两次）：

/etc/php/7.0$ grep -r xdebug *
mods-available/xdebug.ini:zend_extension=xdebug.so
mods-available/xdebug.ini:[xdebug]
mods-available/xdebug.ini:xdebug.remote_enable=1
mods-available/xdebug.ini:xdebug.remote_autostart=1
mods-available/xdebug.ini:xdebug.remote_port=9000
mods-available/xdebug.ini:xdebug.idekey=PHPSTORM

如果我这样做，我得到以下输出，建议它仍然加载xdebug：$ phpdismod xdebug

$ php -v
PHP 7.0.13-0ubuntu0.16.04.1 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.13-0ubuntu0.16.04.1, Copyright (c) 1999-2016, by Zend Technologies
    with Xdebug v2.4.0, Copyright (c) 2002-2016, by Derick Rethans

完成此操作后，它不再存在于 apache 配置中，如 所示。phpinfo()

如何解决此问题？

编辑：根据要求提供其他输出：

$ php --ini
Cannot load Xdebug - it was already loaded
Configuration File (php.ini) Path: /etc/php/7.0/cli
Loaded Configuration File:         /etc/php/7.0/cli/php.ini
Scan for additional .ini files in: /etc/php/7.0/cli/conf.d
Additional .ini files parsed:      /etc/php/7.0/cli/conf.d/10-mysqlnd.ini,
/etc/php/7.0/cli/conf.d/10-opcache.ini,
/etc/php/7.0/cli/conf.d/10-pdo.ini,
/etc/php/7.0/cli/conf.d/15-xml.ini,
/etc/php/7.0/cli/conf.d/20-bcmath.ini,
/etc/php/7.0/cli/conf.d/20-calendar.ini,
/etc/php/7.0/cli/conf.d/20-ctype.ini,
/etc/php/7.0/cli/conf.d/20-curl.ini,
/etc/php/7.0/cli/conf.d/20-dom.ini,
/etc/php/7.0/cli/conf.d/20-exif.ini,
/etc/php/7.0/cli/conf.d/20-fileinfo.ini,
/etc/php/7.0/cli/conf.d/20-ftp.ini,
/etc/php/7.0/cli/conf.d/20-gd.ini,
/etc/php/7.0/cli/conf.d/20-gettext.ini,
/etc/php/7.0/cli/conf.d/20-iconv.ini,
/etc/php/7.0/cli/conf.d/20-json.ini,
/etc/php/7.0/cli/conf.d/20-mbstring.ini,
/etc/php/7.0/cli/conf.d/20-mcrypt.ini,
/etc/php/7.0/cli/conf.d/20-mysqli.ini,
/etc/php/7.0/cli/conf.d/20-pdo_mysql.ini,
/etc/php/7.0/cli/conf.d/20-pdo_sqlite.ini,
/etc/php/7.0/cli/conf.d/20-phar.ini,
/etc/php/7.0/cli/conf.d/20-posix.ini,
/etc/php/7.0/cli/conf.d/20-readline.ini,
/etc/php/7.0/cli/conf.d/20-shmop.ini,
/etc/php/7.0/cli/conf.d/20-simplexml.ini,
/etc/php/7.0/cli/conf.d/20-sockets.ini,
/etc/php/7.0/cli/conf.d/20-sqlite3.ini,
/etc/php/7.0/cli/conf.d/20-sysvmsg.ini,
/etc/php/7.0/cli/conf.d/20-sysvsem.ini,
/etc/php/7.0/cli/conf.d/20-sysvshm.ini,
/etc/php/7.0/cli/conf.d/20-tokenizer.ini,
/etc/php/7.0/cli/conf.d/20-wddx.ini,
/etc/php/7.0/cli/conf.d/20-xdebug.ini,
/etc/php/7.0/cli/conf.d/20-xmlreader.ini,
/etc/php/7.0/cli/conf.d/20-xmlwriter.ini,
/etc/php/7.0/cli/conf.d/20-xsl.ini

$ cat /etc/php/7.0/mods-available/xdebug.ini 
zend_extension=xdebug.so
[xdebug]
xdebug.remote_enable=1
xdebug.remote_autostart=1
xdebug.remote_port=9000
xdebug.idekey=PHPSTORM

由于这仍然是一个问题，我发现了一些进一步的细节：

路径：

$ ls -la /usr/bin/php
lrwxrwxrwx 1 root root 21 Apr 18  2017 /usr/bin/php -> /etc/alternatives/php
$ ls -la /etc/alternatives/php
lrwxrwxrwx 1 root root 15 Feb 12 15:43 /etc/alternatives/php -> /usr/bin/php7.1

断续器：

$ php -v
Cannot load Xdebug - it was already loaded
PHP 7.1.15-1+ubuntu16.04.1+deb.sury.org+2 (cli) (built: Mar  6 2018 11:10:13) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.1.15-1+ubuntu16.04.1+deb.sury.org+2, Copyright (c) 1999-2018, by Zend Technologies
    with Xdebug v2.6.0, Copyright (c) 2002-2018, by Derick Rethans

php7.1：

$ php7.1 -v
PHP 7.1.15-1+ubuntu16.04.1+deb.sury.org+2 (cli) (built: Mar  6 2018 11:10:13) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.1.15-1+ubuntu16.04.1+deb.sury.org+2, Copyright (c) 1999-2018, by Zend Technologies
    with Xdebug v2.6.0, Copyright (c) 2002-2018, by Derick Rethans

有趣的是，php二进制文件与php7.1相同，但是当作为特定调用时，它不会显示已加载的消息。

编辑，20181006：

我仍然有这个问题。下图是两个调用的输出的差异。如您所见，加载的 ini 文件集是相同的。php --ini

它们也是相同的符号链接二进制文件：

ben@ben-work:~$ which php
/usr/bin/php
ben@ben-work:~$ ls -la /usr/bin/php
lrwxrwxrwx 1 root root 21 May 15 16:07 /usr/bin/php -> /etc/alternatives/php
ben@ben-work:~$ ls -la /etc/alternatives/php
lrwxrwxrwx 1 root root 15 May 30 10:13 /etc/alternatives/php -> /usr/bin/php7.1
ben@ben-work:~$ which php7.1 
/usr/bin/php7.1