在安装了php-xml和php-xml7.0之后，Ubuntu 14.04上出现“XML扩展未找到”的Pear错误。

Question

我想使用pecl命令在Ubuntu 14.04上安装Redis到我的PHP中。但我的Pear给了我一长串警告：

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: honorsbaseinstall in Role.php on line 173

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: installable in Role.php on line 139

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: phpfile in Role.php on line 204

Notice: Undefined index: config_vars in Role.php on line 46

Notice: Undefined index: config_vars in Role.php on line 46

Notice: Undefined index: config_vars in Role.php on line 46

Notice: Undefined index: config_vars in Role.php on line 46

Notice: Undefined index: config_vars in Role.php on line 46

Notice: Undefined index: config_vars in Role.php on line 46

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Notice: Undefined index: config_vars in Role.php on line 46

Notice: Undefined index: config_vars in Role.php on line 46

Notice: Undefined index: config_vars in Role.php on line 46

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in PEAR/Command.php on line 249

Warning: Invalid argument supplied for foreach() in /usr/share/php/PEAR/Command.php on line 249
XML Extension not found

最后一行显示了这个信息：

找不到XML扩展

尽管我已经安装了#sudo apt-get install php-xml php7.0-xml，但是仍然出现了相同的问题。

可能的问题是什么？

- Towen

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请同时展示出现错误的代码。我们无法猜测。 - vuryss

@vuryss 什么情况？这些错误是在 OP 从终端发出 pear 命令时显示的。问题中没有涉及任何代码。 - DaGhostman Dimitrov

@DaGhostmanDimitrov，我在使用命令“sudo pecl install redis”时遇到了这个错误。 - Towen

是的，我忽略了这些行。我的错。我怀疑大多数梨形库都没有更新到php7。 - vuryss

请确保梨子版本为1.10.x。 - cweiske

Answer 1

安装这个列表，一切都会正常工作 :)

sudo apt-get install php-pear pkg-config libbson-1.0 libmongoc-1.0-0 php-xml php7.0-xml php-dev

- Danilo Colasso

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那真是太多了 O_o - leymannx

Answer 2

在一些安装中，pecl存在一个bug。找到这一行;

exec $PHP -C -n -q $INCARG -d date.timezone=UTC -d output_buffering=1 -d variables_order=EGPCS -d safe_mode=0 -d register_argc_argv="On" $INCDIR/peclcmd.php "$@" 

去除 -n

如果你想编写脚本，请尝试：

sed -i "$ s|\-n||g" /usr/bin/pecl

- richp10

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在运行Ubuntu 16.04 LTS时遇到了同样的问题。从pecl文件中删除“-n”后，警告得到了解决。感谢richp10！ - Chris

谢谢...在Ubuntu 16.04.4上使用PHP 7.1 (+deb.sury.org)可以正常工作。 - EthraZa

当前的PHP版本为：7.2.16-1+ubuntu18.10.1+deb.sury.org+1。对我来说不起作用 :( - Jackie

谢谢。这在CentOS Linux 7.7.1908 (Core)上运行良好。 - raghu777

Answer 3

遇到这个问题时，我只需要安装php-xml。

sudo apt-get install php-xml

致谢：Taha EL BOUFFI

完整解释请参见此处

- Angad Arora

Answer 4

注意：这并不是对原问题的确切回答，但现在和将来可能更相关。

在更现代的Ubuntu版本（如20.04）中出现此类错误的可能原因之一是系统中安装了多个版本的PHP。

即使您只安装了7.x版本、7.x插件和例如Apache这样的HTTP服务器，也并不意味着不会安装另一个PHP。它可能最初就被安装了（例如在docker基础映像中），或者作为其他某些东西的依赖项而被安装。

我曾经在一个传统的docker容器中遇到过这样的问题，在此之前该容器已经构建并运行过。

解决方案是在PEAR安装之前删除PHP 8.x。

sudo apt-get purge -y `apt list --installed | cut -d/ -f1 | grep php8 | awk '{print $1}' |tr "\n" " "`

或者

sudo apt-get purge -y `dpkg -l | grep php8 | awk '{print $2}' |tr "\n" " "`

- Zbyszek