Meta.php
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<?php
/**
* Created by PhpStorm.
* User: Zip
* Date: 14/12/16
* Time: 下午12:59
*/
namespace Hood\Helper\View;
class Meta extends ViewAbstract
{
private $_requiredKeys = array();
protected $_modifierKey = array('content', 'name', 'http-equiv', 'charset', 'property', 'lang', 'scheme');
public function appendMeta($content, $metaKey, $metaVal, $modifiers = array())
{
assert(is_scalar($content));
assert(is_scalar($metaKey));
assert(is_scalar($metaVal));
$this->_requiredKeys[] = array(
'required' => array(
'content' => $content,
'type_name' => $metaKey,
'type_val' => $metaVal
),
'modifiers' => $this->_checking($modifiers)
);
return $this;
}
private function _checking(array $modifiers)
{
$_modifiers = array();
foreach ($modifiers as $key => $val) {
if (isset($this->_modifierKey[$key])) {
$_modifiers[] = array(
$key => $val
);
}
}
return $_modifiers;
}
public function __toString()
{
$html = '';
foreach ($this->_requiredKeys as $_key => $_val) {
$modifiersString = '';
foreach ($_val['modifiers'] as $m_key => $m_val) {
$modifiersString .= $m_key . '="' . $this->_escape($m_val) . '" ';
}
$tpl = '<meta %s="%s" content="%s" %s/>' . PHP_EOL;
$html .= sprintf(
$tpl,
$_val['required']['type_name'],
$this->_escape($_val['required']['type_val']),
$this->_escape($_val['required']['content']),
$modifiersString
);
}
return $html;
}
}