/etc/pear/pear.conf is in php-pear 5.5.9+dfsg-1ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | #PEAR_Config 0.9
a:31:{s:9:"cache_dir";s:15:"/tmp/pear/cache";s:15:"default_channel";s:12:"pear.php.net";s:16:"preferred_mirror";s:12:"pear.php.net";s:13:"remote_config";s:0:"";s:13:"auto_discover";i:0;s:13:"master_server";s:12:"pear.php.net";s:10:"http_proxy";s:0:"";s:7:"php_dir";s:14:"/usr/share/php";s:7:"ext_dir";s:26:"/usr/lib/php5/20121212+lfs";s:7:"doc_dir";s:18:"/usr/share/php/doc";s:7:"bin_dir";s:8:"/usr/bin";s:8:"data_dir";s:19:"/usr/share/php/data";s:7:"cfg_dir";s:18:"/usr/share/php/cfg";s:7:"www_dir";s:21:"/usr/share/php/htdocs";s:8:"test_dir";s:19:"/usr/share/php/test";s:8:"temp_dir";s:14:"/tmp/pear/temp";s:12:"download_dir";s:49:"/build/buildd/php5-5.5.9+dfsg/pear-build-download";s:7:"php_bin";s:12:"/usr/bin/php";s:10:"php_prefix";s:0:"";s:10:"php_suffix";s:0:"";s:7:"php_ini";s:0:"";s:8:"username";s:0:"";s:8:"password";s:0:"";s:7:"verbose";i:1;s:15:"preferred_state";s:6:"stable";s:5:"umask";i:2;s:9:"cache_ttl";i:3600;s:8:"sig_type";s:3:"gpg";s:7:"sig_bin";s:12:"/usr/bin/gpg";s:9:"sig_keyid";s:0:"";s:10:"sig_keydir";s:18:"/etc/pear/pearkeys";}
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