linux 运行pecl命令报错解决办法

今天在一台机器上运行pecl install swoole时报了一堆错

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

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

问题所在
安装PHP时没有启用xml模块，因为当PECL尝试使用它的XMLParser.php类时，它失败了，因为它无法访问XML扩展。

解决办法
1、重新编译PHP并加上./configure --disable-xml

2、编辑pecl文件

vim pecl

image.png

将-n去掉