Linux安装PECL

//php版本 > 7
$ wget http://pear.php.net/go-pear.phar
$ php go-pear.phar

//php版本 < 7
$ yum install php-pear
//否则会报错PHP Parse error:  syntax error, unexpected //'new' (T_NEW) in /usr/share/pear/PEAR/Frontend.php on //line 91

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