+
+## Installation:
+
+This extension is hosted at [PECL](http://pecl.php.net) and can be installed with [PEAR](http://pear.php.net)'s pecl command:
+
+ # pecl install pq
+
+## Dependencies:
+
+This extension unconditionally depends on the pre-loaded presence of the following PHP extensions:
+
+* raphf
+* spl
+
+It optionally depends on the following extensions:
+
+* json