Stringify Attributes

common.php

/**
 * Stringify attributes for use in html tags.
 *
 * Helper function used to convert an array or object of
 * attributes to a string
 *
 * @param	mixed
 * @return	string
 */
function _stringify_attributes($attributes, $js = FALSE)
{
	if (is_object($attributes) && count($attributes) > 0)
	{
		$attributes = (array) $attributes;
	}

	if (is_array($attributes))
	{
		$atts = '';
		if (count($attributes) === 0)
		{
			return $atts;
		}
		foreach ($attributes as $key => $val)
		{
			if ($js)
			{
				$atts .= $key.'='.$val.',';
			}
			else
			{
				$atts .= ' '.$key.'="'.$val.'"';
			}
		}
		return rtrim($atts, ',');
	}
	elseif (is_string($attributes) && strlen($attributes) > 0)
	{
		return ' '.$attributes;
	}

	return $attributes;
}

unit_test.php

public function test_stringify_attributes()
{
	$this->assertEquals(' class="foo" id="bar"', _stringify_attributes(array('class' => 'foo', 'id' => 'bar')));

	$atts = new Stdclass;
	$atts->class = 'foo';
	$atts->id = 'bar';
	$this->assertEquals(' class="foo" id="bar"', _stringify_attributes($atts));

	$this->assertEquals(' class="foo" id="bar"', _stringify_attributes('class="foo" id="bar"'));
}

public function test_stringify_js_attributes()
{
	$this->assertEquals('width=800,height=600', _stringify_attributes(array('width' => '800', 'height' => '600'), TRUE));

	$atts = new Stdclass;
	$atts->width = 800;
	$atts->height = 600;
	$this->assertEquals('width=800,height=600', _stringify_attributes($atts, TRUE));
}