continued adding comments to arr class.

laravel/arr.php

@@ -42,6 +42,13 @@ public static function get($array, $key, $default = null)
 	 *
 	 * The same "dot" syntax used by the "get" method may be used here.
 	 *
+	 * If no key is given to the method, the entire array will be replaced.
+	 *
+	 * <code>
+	 *		// Set the $array['user']['name'] value on the array
+	 *		Arr::set($array, 'user.name', 'Taylor');
+	 * </code>
+	 *
 	 * @param  array   $array
 	 * @param  string  $key
 	 * @param  mixed   $value
@@ -71,6 +78,14 @@ public static function set(&$array, $key, $value)
 	/**
 	 * Return the first element in an array which passes a given truth test.
 	 *
+	 * <code>
+	 *		// Return the first array element that equals "Taylor"
+	 *		$value = Arr::first($array, function($k, $v) {return $v === 'Taylor';});
+	 *
+	 *		// Return a default value if no matching element is found
+	 *		$value = Arr::first($array, function($k, $v) {return $v === 'Taylor'}, 'Default');
+	 * </code>
+	 *
 	 * @param  array    $array
 	 * @param  Closure  $callback
 	 * @return mixed
@@ -88,13 +103,21 @@ public static function first($array, $callback, $default = null)
 	/**
 	 * Remove all array values that are contained within a given array of values.
 	 *
+	 * <code>
+	 *		// Remove all array values that are empty strings
+	 *		$array = Arr::without($array, '');
+	 *
+	 *		// Remove all array values that are "One", "Two", or "Three"
+	 *		$array = Arr::without($array, array('One', 'Two', 'Three'));
+	 * </code>
+	 *
 	 * @param  array  $array
 	 * @param  array  $without
 	 * @return array
 	 */
 	public static function without($array, $without = array())
 	{
-		foreach ($array as $key => $value)
+		foreach ((array) $array as $key => $value)
 		{
 			if (in_array($value, $without)) unset($array[$key]);
 		}