Gravatar.php
public function setAvatarSize($size)
	{
		// Wipe out the param cache.
		$this->param_cache = NULL;

		if(!is_int($size) && !ctype_digit($size))
		{
			throw new InvalidArgumentException('Avatar size specified must be an integer');
		}

		$this->size = (int) $size;

		if($this->size > 512 || $this->size < 0)
		{
			throw new InvalidArgumentException('Avatar size must be within 0 pixels and 512 pixels');
		}

		return $this;
	}
public function setAvatarSize($size)
	{
		// Wipe out the param cache.
		$this->param_cache = NULL;

		if(!is_int($size) && !ctype_digit($size))
		{
			throw new InvalidArgumentException('Avatar size specified must be an integer');
		}

		$this->size = (int) $size;

		if($this->size > 512 || $this->size < 0)
		{
			throw new InvalidArgumentException('Avatar size must be within 0 pixels and 512 pixels');
		}

		return $this;
	}
Set the avatar size to use.
@param integer $size - The avatar size to use, must be less than 512 and greater than 0.
@return \thomaswelton\GravatarLib\Gravatar - Provides a fluent interface.

@throws \InvalidArgumentException