No 'p' pageParam

README.md

@@ -132,9 +132,11 @@ The max number of elements that should be included in each page, if pagination i
 The query string param name that should be used to identify which page is being requested. By default this is set to `'page'`.
 
 ```php
-'pageParam' => 'p',
+'pageParam' => 'pg',
 ```
 
+Note that it cannot be set to `'p'` because that’s the parameter Craft uses to check the requested path.
+
 
 ### Dynamic URL Patterns and Endpoint Configurations
 
@@ -162,7 +164,7 @@ return [
     'defaults' => [
         'elementType' => 'Entry',
         'elementsPerPage' => 10,
-        'pageParam' => 'p',
+        'pageParam' => 'pg',
         'transformer' => function(EntryModel $entry) {
             return [
                 'title' => $entry->title,

elementapi/ElementApi_PaginatorAdapter.php

@@ -137,7 +137,7 @@ private function _getCurrentPage()
 		{
 			$currentPage = $this->totalPages > 0 ? $this->totalPages : 1;
 		}
-		else if ($currentPage < 0)
+		else if (!is_numeric($currentPage) || $currentPage < 0)
 		{
 			$currentPage = 1;
 		}

elementapi/controllers/ElementApiController.php

@@ -49,6 +49,11 @@ public function actionGetElements($configFactory = null, array $config = null)
 			$config
 		);
 
+		if ($config['pageParam'] == 'p')
+		{
+			throw new Exception('The pageParam setting cannot be set to "p" because that’s the parameter Craft uses to check the requested path.');
+		}
+
 		if (!isset($config['elementType']))
 		{
 			throw new Exception('Element API configs must specify the elementType.');